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187 relations: Absorption spectroscopy, Adenocarcinoma, Alpha decay, Alpha particle, Amphoterism, Analytical chemistry, Ancient Greek, Antibody, Atomic Data and Nuclear Data Tables, Atomic electron transition, Atomic number, Atomic orbital, Auburn University, Ballantine Books, Band gap, Bangladesh, Base (chemistry), Becquerel, Benzene, Berkelium, Berta Karlik, Beta decay, Bismuth, Bismuth(III) nitrate, Bismuth(III) oxide, Bismuth-209, Bisphosphonate, Boiling point, Bone metastasis, Boron, Bromide, Bromine, Cancer, Cathode, Chalcogen, Chelation, Chemical compound, Chemical element, Chlorine, Chloroform, Chromate and dichromate, Close-packing of equal spheres, Cold trap, Colloid, Coprecipitation, Crust (geology), Cyclotron, Dale R. Corson, Decay chain, Decay product, ..., Dehalogenation, Dhaka, Diatomic molecule, Dibutyl ether, Diisopropyl ether, Dmitri Mendeleev, Dysplasia, Electron affinity, Electron capture, Electron configuration, Electronegativity, Electronvolt, Electroplating, Emilio Segrè, Enthalpy of vaporization, Ethylenediaminetetraacetic acid, Excited state, Extrapolation, Fluorine, Francium, Fred Allison, Friedrich Paneth, Giga-, Ground state, Half-life, Halogen, Helium, Herbert G. MacPherson, Horia Hulubei, Hydrogen astatide, Interhalogen, Internal energy, International Union of Pure and Applied Chemistry, Interpolation, Iodate, Iodide, Iodine, Iodine monobromide, Iodine-131, Ion, Isotope, Isotopes of astatine, Isotopes of neptunium, Isotopes of polonium, John Wiley & Sons, Kenneth Ross MacKenzie, Lanthanum, Liquid–liquid extraction, Liver, Magic number (physics), Mass excess, Mass spectrometry, Melanoma, Melting point, Mendeleev's predicted elements, Metal, Metalloid, Metastability, Methanol, Methylene blue, Microgram, Molar refractivity, Molar volume, Monatomic ion, Monoclonal antibody, Nanosecond, Nature, Neutron, Niels Bohr, Nitric acid, Nitrogen, Nitrogen oxide, Noble metal, Nuclear isomer, Nuclear medicine, Nuclear Physics (journal), Nucleon, Octreotide, Orbital hybridisation, Orders of magnitude (mass), Orthorhombic crystal system, Oxidation state, Palladium, Perchloric acid, Periodate, Periodic table, Periodic Videos, PH, Physical Chemistry Chemical Physics, Picometre, Plot (graphics), Polonium, Positron emission, Potassium hydroxide, Precipitation (chemistry), Presidencies and provinces of British India, Proton, Pyridine, Radiation protection, Radiation therapy, Radioactive decay, Radioactive tracer, Radiochemistry, Radiolysis, Radiopharmaceutical, Radon, Radon difluoride, Redox, Room temperature, Sanskrit, Selenium, Selenourea, Semicarbazide, Semiconductor, Silver iodide, Society for Science & the Public, Sodium hydroxide, Sodium persulfate, Somatostatin receptor, Sorption, Spin–orbit interaction, Sputtering, Sulfur, Superconductivity, Tellurium, Thallium, Thorium, Thyroid, University of California, Berkeley, Uranium, Uranium ore, Vapor pressure, Volatilisation, Walter Minder, World War II, Xenon difluoride, Yvette Cauchois. Expand index (137 more) »
Absorption spectroscopy
Absorption spectroscopy refers to spectroscopic techniques that measure the absorption of radiation, as a function of frequency or wavelength, due to its interaction with a sample.
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Adenocarcinoma
Adenocarcinoma (plural adenocarcinomas or adenocarcinomata) is a type of cancerous tumor that can occur in several parts of the body.
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Alpha decay
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a mass number that is reduced by four and an atomic number that is reduced by two.
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Alpha particle
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus.
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Amphoterism
In chemistry, an amphoteric compound is a molecule or ion that can react both as an acid as well as a base.
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Analytical chemistry
Analytical chemistry studies and uses instruments and methods used to separate, identify, and quantify matter.
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Ancient Greek
The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.
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Antibody
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells that is used by the immune system to neutralize pathogens such as pathogenic bacteria and viruses.
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Atomic Data and Nuclear Data Tables
Atomic Data and Nuclear Data Tables is a quarterly peer-reviewed scientific journal covering nuclear physics.
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Atomic electron transition
Atomic electron transition is a change of an electron from one energy level to another within an atom or artificial atom.
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Atomic number
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom.
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Atomic orbital
In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom.
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Auburn University
Auburn University (AU or Auburn) is a public research university in Auburn, Alabama, United States.
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Ballantine Books
Ballantine Books is a major book publisher located in the United States, founded in 1952 by Ian Ballantine with his wife, Betty Ballantine.
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Band gap
In solid-state physics, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states can exist.
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Bangladesh
Bangladesh (বাংলাদেশ, lit. "The country of Bengal"), officially the People's Republic of Bangladesh (গণপ্রজাতন্ত্রী বাংলাদেশ), is a country in South Asia.
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Base (chemistry)
In chemistry, bases are substances that, in aqueous solution, release hydroxide (OH−) ions, are slippery to the touch, can taste bitter if an alkali, change the color of indicators (e.g., turn red litmus paper blue), react with acids to form salts, promote certain chemical reactions (base catalysis), accept protons from any proton donor, and/or contain completely or partially displaceable OH− ions.
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Becquerel
The becquerel (symbol: Bq) is the SI derived unit of radioactivity.
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Benzene
Benzene is an important organic chemical compound with the chemical formula C6H6.
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Berkelium
Berkelium is a transuranic radioactive chemical element with symbol Bk and atomic number 97.
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Berta Karlik
Berta Karlik was an Austrian physicist.
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Beta decay
In nuclear physics, beta decay (β-decay) is a type of radioactive decay in which a beta ray (fast energetic electron or positron) and a neutrino are emitted from an atomic nucleus.
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Bismuth
Bismuth is a chemical element with symbol Bi and atomic number 83.
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Bismuth(III) nitrate
Bismuth(III) nitrate a salt composed of bismuth in its cationic +3 oxidation state and nitrate anions.
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Bismuth(III) oxide
Bismuth(III) oxide is perhaps the most industrially important compound of bismuth.
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Bismuth-209
Bismuth-209 is the "quasi-stable" isotope of bismuth with the longest known half-life of any radioisotope that undergoes α-decay (alpha decay).
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Bisphosphonate
Bisphosphonates are a class of drugs that prevent the loss of bone density, used to treat osteoporosis and similar diseases.
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Boiling point
The boiling point of a substance is the temperature at which the vapor pressure of the liquid equals the pressure surrounding the liquid and the liquid changes into a vapor.
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Bone metastasis
Bone metastases, or osseous metastatic disease, is a category of cancer metastases that results from primary tumor invasion to bone.
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Boron
Boron is a chemical element with symbol B and atomic number 5.
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Bromide
A bromide is a chemical compound containing a bromide ion or ligand.
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Bromine
Bromine is a chemical element with symbol Br and atomic number 35.
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Cancer
Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.
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Cathode
A cathode is the electrode from which a conventional current leaves a polarized electrical device.
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Chalcogen
The chalcogens are the chemical elements in group 16 of the periodic table.
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Chelation
Chelation is a type of bonding of ions and molecules to metal ions.
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Chemical compound
A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) composed of atoms from more than one element held together by chemical bonds.
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Chemical element
A chemical element is a species of atoms having the same number of protons in their atomic nuclei (that is, the same atomic number, or Z).
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Chlorine
Chlorine is a chemical element with symbol Cl and atomic number 17.
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Chloroform
Chloroform, or trichloromethane, is an organic compound with formula CHCl3.
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Chromate and dichromate
Chromate salts contain the chromate anion,.
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Close-packing of equal spheres
In geometry, close-packing of equal spheres is a dense arrangement of congruent spheres in an infinite, regular arrangement (or lattice).
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Cold trap
In vacuum applications, a cold trap is a device that condenses all vapors except the permanent gases into a liquid or solid.
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Colloid
In chemistry, a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.
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Coprecipitation
In chemistry, coprecipitation (CPT) or co-precipitation is the carrying down by a precipitate of substances normally soluble under the conditions employed.
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Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite.
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Cyclotron
A cyclotron is a type of particle accelerator invented by Ernest O. Lawrence in 1929-1930 at the University of California, Berkeley, and patented in 1932.
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Dale R. Corson
Dale Raymond Corson (April 5, 1914 – March 31, 2012) was the eighth president of Cornell University.
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Decay chain
In nuclear science, the decay chain refers to a series of radioactive decays of different radioactive decay products as a sequential series of transformations.
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Decay product
In nuclear physics, a decay product (also known as a daughter product, daughter isotope, radio-daughter, or daughter nuclide) is the remaining nuclide left over from radioactive decay.
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Dehalogenation
Dehalogenation is a chemical reaction that involves the cleavage of C-Halogen bond to form product.
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Dhaka
Dhaka (or; ঢাকা); formerly known as Dacca is the capital and largest city of Bangladesh.
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Diatomic molecule
Diatomic molecules are molecules composed of only two atoms, of the same or different chemical elements.
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Dibutyl ether
Dibutyl ether is a chemical compound belonging to the ether family with the molecular formula of.
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Diisopropyl ether
Diisopropyl ether is secondary ether that is used as a solvent.
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Dmitri Mendeleev
Dmitri Ivanovich Mendeleev (a; 8 February 18342 February 1907 O.S. 27 January 183420 January 1907) was a Russian chemist and inventor.
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Dysplasia
Dysplasia (from Ancient Greek δυσ- dys-, "bad" or "difficult" and πλάσις plasis, "formation") is a term used in pathology to refer to an abnormality of development or an epithelial anomaly of growth and differentiation (epithelial dysplasia).
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Electron affinity
In chemistry and atomic physics, the electron affinity (Eea) of an atom or molecule is defined as the amount of energy released or spent when an electron is added to a neutral atom or molecule in the gaseous state to form a negative ion.
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Electron capture
Electron capture (K-electron capture, also K-capture, or L-electron capture, L-capture) is a process in which the proton-rich nucleus of an electrically neutral atom absorbs an inner atomic electron, usually from the K or L electron shell.
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Electron configuration
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals.
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Electronegativity
Electronegativity, symbol ''χ'', is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (or electron density) towards itself.
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Electronvolt
In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
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Electroplating
Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode.
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Emilio Segrè
Emilio Gino Segrè (1 February 1905 – 22 April 1989) was an Italian-American physicist and Nobel laureate, who discovered the elements technetium and astatine, and the antiproton, a subatomic antiparticle, for which he was awarded the Nobel Prize in Physics in 1959.
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Enthalpy of vaporization
The enthalpy of vaporization, (symbol ∆Hvap) also known as the (latent) heat of vaporization or heat of evaporation, is the amount of energy (enthalpy) that must be added to a liquid substance, to transform a quantity of that substance into a gas.
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Ethylenediaminetetraacetic acid
Ethylenediaminetetraacetic acid (EDTA), also known by several other names, is a chemical originating in multiseasonal plants with dormancy stages as a lipidopreservative which helps to develop the stem, currently used for both industrial and medical purposes.
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Excited state
In quantum mechanics, an excited state of a system (such as an atom, molecule or nucleus) is any quantum state of the system that has a higher energy than the ground state (that is, more energy than the absolute minimum).
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Extrapolation
In mathematics, extrapolation is the process of estimating, beyond the original observation range, the value of a variable on the basis of its relationship with another variable.
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Fluorine
Fluorine is a chemical element with symbol F and atomic number 9.
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Francium
Francium is a chemical element with symbol Fr and atomic number 87.
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Fred Allison
Fred C. Allison (July 4, 1882 – August 2, 1974) was an American physicist.
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Friedrich Paneth
Friedrich Adolf Paneth (31 August 1887 – 17 September 1958) was an Austrian-born British chemist.
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Giga-
Giga is a unit prefix in the metric system denoting a factor of a (short-form) billion (109 or 000).
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Ground state
The ground state of a quantum mechanical system is its lowest-energy state; the energy of the ground state is known as the zero-point energy of the system.
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Half-life
Half-life (symbol t1⁄2) is the time required for a quantity to reduce to half its initial value.
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Halogen
The halogens are a group in the periodic table consisting of five chemically related elements: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At).
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Helium
Helium (from lit) is a chemical element with symbol He and atomic number 2.
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Herbert G. MacPherson
Herbert G. MacPherson (2 November 1911 – 6 January 1993)Herbert G. MacPherson, National Academy of Engineering Memorial Tributes vol 7 (1994) pp.
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Horia Hulubei
Horia Hulubei (15 November 1896 – 22 November 1972) was a Romanian nuclear physicist, known for his contributions to the development of X-ray spectroscopy.
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Hydrogen astatide
Hydrogen astatide, also known as astatine hydride, astatane, or astidohydrogen, is a chemical compound with the chemical formula, consisting of an astatine atom covalently bonded to a hydrogen atom.
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Interhalogen
An interhalogen compound is a molecule which contains two or more different halogen atoms (fluorine, chlorine, bromine, iodine, or astatine) and no atoms of elements from any other group.
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Internal energy
In thermodynamics, the internal energy of a system is the energy contained within the system, excluding the kinetic energy of motion of the system as a whole and the potential energy of the system as a whole due to external force fields.
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International Union of Pure and Applied Chemistry
The International Union of Pure and Applied Chemistry (IUPAC) is an international federation of National Adhering Organizations that represents chemists in individual countries.
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Interpolation
In the mathematical field of numerical analysis, interpolation is a method of constructing new data points within the range of a discrete set of known data points.
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Iodate
An iodate is a conjugate base of iodic acid.
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Iodide
An iodide ion is the ion I−.
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Iodine
Iodine is a chemical element with symbol I and atomic number 53.
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Iodine monobromide
Iodine monobromide is an interhalogen compound with the chemical symbol IBr.
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Iodine-131
Iodine-131 (131I) is an important radioisotope of iodine discovered by Glenn Seaborg and John Livingood in 1938 at the University of California, Berkeley.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Isotope
Isotopes are variants of a particular chemical element which differ in neutron number.
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Isotopes of astatine
Astatine (85At) has 37 known isotopes, all of which are radioactive; the range of their mass numbers is from 191 to 229.
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Isotopes of neptunium
Neptunium (93Np) is usually considered an artificial element, although trace quantities are found in nature, so thus a standard atomic weight cannot be given.
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Isotopes of polonium
Polonium (84Po) has 33 isotopes, all of which are radioactive, with between 186 and 227 nucleons.
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John Wiley & Sons
John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing.
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Kenneth Ross MacKenzie
Kenneth Ross MacKenzie (June 15, 1912 – July 4, 2002) together with Dale R. Corson and Emilio Segrè, synthesized the element astatine, in 1940.
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Lanthanum
Lanthanum is a chemical element with symbol La and atomic number 57.
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Liquid–liquid extraction
Liquid–liquid extraction (LLE), also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar).
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Liver
The liver, an organ only found in vertebrates, detoxifies various metabolites, synthesizes proteins, and produces biochemicals necessary for digestion.
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Magic number (physics)
In nuclear physics, a magic number is a number of nucleons (either protons or neutrons, separately) such that they are arranged into complete shells within the atomic nucleus.
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Mass excess
The mass excess of a nuclide is the difference between its actual mass and its mass number in atomic mass units.
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Mass spectrometry
Mass spectrometry (MS) is an analytical technique that ionizes chemical species and sorts the ions based on their mass-to-charge ratio.
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Melanoma
Melanoma, also known as malignant melanoma, is a type of cancer that develops from the pigment-containing cells known as melanocytes.
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Melting point
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid at atmospheric pressure.
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Mendeleev's predicted elements
Dmitri Mendeleev published a periodic table of the chemical elements in 1869 based on properties that appeared with some regularity as he laid out the elements from lightest to heaviest.
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Metal
A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material (an element, compound, or alloy) that is typically hard when in solid state, opaque, shiny, and has good electrical and thermal conductivity.
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Metalloid
A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them.
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Metastability
In physics, metastability is a stable state of a dynamical system other than the system's state of least energy.
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Methanol
Methanol, also known as methyl alcohol among others, is a chemical with the formula CH3OH (a methyl group linked to a hydroxyl group, often abbreviated MeOH).
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Methylene blue
Methylene blue, also known as methylthioninium chloride, is a medication and dye.
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Microgram
In the metric system, a microgram or microgramme (μg; the recommended symbol in the United States when communicating medical information is mcg) is a unit of mass equal to one millionth of a gram.
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Molar refractivity
Molar refractivity, A, is a measure of the total polarizability of a mole of a substance and is dependent on the temperature, the index of refraction, and the pressure.
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Molar volume
The molar volume, symbol Vm, is the volume occupied by one mole of a substance (chemical element or chemical compound) at a given temperature and pressure.
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Monatomic ion
A monatomic ion is an ion consisting of exactly one atom.
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Monoclonal antibody
Monoclonal antibodies (mAb or moAb) are antibodies that are made by identical immune cells that are all clones of a unique parent cell.
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Nanosecond
A nanosecond (ns) is an SI unit of time equal to one thousand-millionth of a second (or one billionth of a second), that is, 1/1,000,000,000 of a second, or 10 seconds.
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Nature
Nature, in the broadest sense, is the natural, physical, or material world or universe.
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Neutron
| magnetic_moment.
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Niels Bohr
Niels Henrik David Bohr (7 October 1885 – 18 November 1962) was a Danish physicist who made foundational contributions to understanding atomic structure and quantum theory, for which he received the Nobel Prize in Physics in 1922.
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Nitric acid
Nitric acid (HNO3), also known as aqua fortis (Latin for "strong water") and spirit of niter, is a highly corrosive mineral acid.
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Nitrogen
Nitrogen is a chemical element with symbol N and atomic number 7.
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Nitrogen oxide
Nitrogen oxide may refer to a binary compound of oxygen and nitrogen, or a mixture of such compounds.
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Noble metal
In chemistry, the noble metals are metals that are resistant to corrosion and oxidation in moist air (unlike most base metals).
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Nuclear isomer
A nuclear isomer is a metastable state of an atomic nucleus caused by the excitation of one or more of its nucleons (protons or neutrons).
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Nuclear medicine
Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease.
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Nuclear Physics (journal)
Nuclear Physics is a peer-reviewed scientific journal published by Elsevier.
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Nucleon
In chemistry and physics, a nucleon is either a proton or a neutron, considered in its role as a component of an atomic nucleus.
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Octreotide
Octreotide (trade name Sandostatin, among others) is an octapeptide that mimics natural somatostatin pharmacologically, though it is a more potent inhibitor of growth hormone, glucagon, and insulin than the natural hormone.
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Orbital hybridisation
In chemistry, orbital hybridisation (or hybridization) is the concept of mixing atomic orbitals into new hybrid orbitals (with different energies, shapes, etc., than the component atomic orbitals) suitable for the pairing of electrons to form chemical bonds in valence bond theory.
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Orders of magnitude (mass)
To help compare different orders of magnitude, the following lists describe various mass levels between 10−40 kg and 1053 kg.
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Orthorhombic crystal system
In crystallography, the orthorhombic crystal system is one of the 7 crystal systems.
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Oxidation state
The oxidation state, sometimes referred to as oxidation number, describes degree of oxidation (loss of electrons) of an atom in a chemical compound.
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Palladium
Palladium is a chemical element with symbol Pd and atomic number 46.
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Perchloric acid
Perchloric acid is a mineral acid with the formula HClO4.
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Periodate
Periodate is an anion composed of iodine and oxygen.
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Periodic table
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number, electron configuration, and recurring chemical properties, whose structure shows periodic trends.
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Periodic Videos
The Periodic Table of Videos (usually shortened to Periodic Videos) is a series of videos about chemical elements and the periodic table.
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PH
In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution.
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Physical Chemistry Chemical Physics
Physical Chemistry Chemical Physics is a weekly peer-reviewed scientific journal publishing research and review articles on any aspect of physical chemistry, chemical physics, and biophysical chemistry.
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Picometre
The picometre (international spelling as used by the International Bureau of Weights and Measures; SI symbol: pm) or picometer (American spelling) is a unit of length in the metric system, equal to, or one trillionth of a metre, which is the SI base unit of length.
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Plot (graphics)
A plot is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables.
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Polonium
Polonium is a chemical element with symbol Po and atomic number 84.
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Positron emission
Positron emission or beta plus decay (β+ decay) is a subtype of radioactive decay called beta decay, in which a proton inside a radionuclide nucleus is converted into a neutron while releasing a positron and an electron neutrino (νe).
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Potassium hydroxide
Potassium hydroxide is an inorganic compound with the formula KOH, and is commonly called caustic potash.
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Precipitation (chemistry)
Precipitation is the creation of a solid from a solution.
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Presidencies and provinces of British India
The Provinces of India, earlier Presidencies of British India and still earlier, Presidency towns, were the administrative divisions of British governance in the subcontinent.
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Proton
| magnetic_moment.
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Pyridine
Pyridine is a basic heterocyclic organic compound with the chemical formula C5H5N.
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Radiation protection
Radiation protection, sometimes known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this".
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Radiation therapy
Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is therapy using ionizing radiation, generally as part of cancer treatment to control or kill malignant cells and normally delivered by a linear accelerator.
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Radioactive decay
Radioactive decay (also known as nuclear decay or radioactivity) is the process by which an unstable atomic nucleus loses energy (in terms of mass in its rest frame) by emitting radiation, such as an alpha particle, beta particle with neutrino or only a neutrino in the case of electron capture, gamma ray, or electron in the case of internal conversion.
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Radioactive tracer
A radioactive tracer, or radioactive label, is a chemical compound in which one or more atoms have been replaced by a radionuclide so by virtue of its radioactive decay it can be used to explore the mechanism of chemical reactions by tracing the path that the radioisotope follows from reactants to products.
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Radiochemistry
Radiochemistry is the chemistry of radioactive materials, where radioactive isotopes of elements are used to study the properties and chemical reactions of non-radioactive isotopes (often within radiochemistry the absence of radioactivity leads to a substance being described as being inactive as the isotopes are stable).
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Radiolysis
Radiolysis is the dissociation of molecules by ionizing radiation.
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Radiopharmaceutical
Radiopharmaceuticals, or medicinal radiocompounds, are a group of pharmaceutical drugs which have radioactivity.
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Radon
Radon is a chemical element with symbol Rn and atomic number 86.
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Radon difluoride
Radon difluoride is a compound of radon, a noble gas.
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Redox
Redox (short for reduction–oxidation reaction) (pronunciation: or) is a chemical reaction in which the oxidation states of atoms are changed.
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Room temperature
Colloquially, room temperature is the range of air temperatures that most people prefer for indoor settings, which feel comfortable when wearing typical indoor clothing.
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Sanskrit
Sanskrit is the primary liturgical language of Hinduism; a philosophical language of Hinduism, Sikhism, Buddhism and Jainism; and a former literary language and lingua franca for the educated of ancient and medieval India.
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Selenium
Selenium is a chemical element with symbol Se and atomic number 34.
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Selenourea
Selenourea is the organoselenium compound with the formula SeC(NH2)2.
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Semicarbazide
Semicarbazide is the chemical compound with the formula OC(NH2)(N2H3).
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Semiconductor
A semiconductor material has an electrical conductivity value falling between that of a conductor – such as copper, gold etc.
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Silver iodide
Silver iodide is an inorganic compound with the formula AgI. The compound is a bright yellow solid, but samples almost always contain impurities of metallic silver that give a gray coloration. The silver contamination arises because AgI is highly photosensitive. This property is exploited in silver-based photography. Silver iodide is also used as an antiseptic and in cloud seeding.
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Society for Science & the Public
Society for Science & the Public (SSP), formerly known as Science Service, is a 501(c)3 non-profit organization dedicated to the promotion of science, through its science education programs and publications, including the bi-weekly Science News magazine and the free-accessible online.
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Sodium hydroxide
Sodium hydroxide, also known as lye, is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations and hydroxide anions. Sodium hydroxide is a highly caustic base and alkali that decomposes proteins at ordinary ambient temperatures and may cause severe chemical burns. It is highly soluble in water, and readily absorbs moisture and carbon dioxide from the air. It forms a series of hydrates NaOH·n. The monohydrate NaOH· crystallizes from water solutions between 12.3 and 61.8 °C. The commercially available "sodium hydroxide" is often this monohydrate, and published data may refer to it instead of the anhydrous compound. As one of the simplest hydroxides, it is frequently utilized alongside neutral water and acidic hydrochloric acid to demonstrate the pH scale to chemistry students. Sodium hydroxide is used in many industries: in the manufacture of pulp and paper, textiles, drinking water, soaps and detergents, and as a drain cleaner. Worldwide production in 2004 was approximately 60 million tonnes, while demand was 51 million tonnes.
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Sodium persulfate
Sodium persulfate is the inorganic compound with the formula Na2S2O8.
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Somatostatin receptor
There are five known somatostatin receptors.
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Sorption
Sorption is a physical and chemical process by which one substance becomes attached to another.
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Spin–orbit interaction
In quantum physics, the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is a relativistic interaction of a particle's spin with its motion inside a potential.
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Sputtering
Sputtering is a process whereby particles are ejected from a solid target material due to bombardment of the target by energetic particles, particularly gas ions in a laboratory.
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Sulfur
Sulfur or sulphur is a chemical element with symbol S and atomic number 16.
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Superconductivity
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic flux fields occurring in certain materials, called superconductors, when cooled below a characteristic critical temperature.
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Tellurium
Tellurium is a chemical element with symbol Te and atomic number 52.
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Thallium
Thallium is a chemical element with symbol Tl and atomic number 81.
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Thorium
Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90.
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Thyroid
The thyroid gland, or simply the thyroid, is an endocrine gland in the neck, consisting of two lobes connected by an isthmus.
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University of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public research university in Berkeley, California.
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Uranium
Uranium is a chemical element with symbol U and atomic number 92.
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Uranium ore
Uranium ore deposits are economically recoverable concentrations of uranium within the Earth's crust.
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Vapor pressure
Vapor pressure or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system.
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Volatilisation
Volatilization is the process whereby a dissolved sample is vaporised.
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Walter Minder
Walter Minder (August 6, 1905 – April 1, 1992) was a Swiss mineralogist and chemist.
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World War II
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
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Xenon difluoride
Xenon difluoride is a powerful fluorinating agent with the chemical formula, and one of the most stable xenon compounds.
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Yvette Cauchois
Yvette Cauchois (19 December 1908 – 19 November 1999) was a French physicist known for her contributions to x-ray spectroscopy and x-ray optics, and for pioneering European synchrotron research.
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References
[1] https://en.wikipedia.org/wiki/Astatine
