179 relations: Actinide, Actinium, Alkali metal, Alkaline earth metal, Alpha decay, Alpha particle, American Journal of Physics, Amnon Marinov, Aqueous solution, Atomic mass unit, Atomic number, Atomic orbital, Atomic radius, Aufbau principle, Barium, Barn (unit), Berkelium, Block (periodic table), Bohr model, Boiling point, Boron group, Caesium, Calcium, Carbon group, Carbonyl, Celsius, Cerium, CERN, Chalcogen, Chemical element, Chemistry World, Congener (chemistry), Covalent bond, Covalent radius, Cyanide, Darmstadt, Density, Dirac equation, Dubna, Eigenvalues and eigenvectors, Einsteinium, Electron configuration, Electronvolt, Enthalpy, Erbium, Extended periodic table, Fine-structure constant, Flerovium, Fluoride, Fluorine, ..., Francium, Georgy Flyorov, Glenn T. Seaborg, Group (periodic table), Group 10 element, Group 11 element, Group 12 element, Group 3 element, Group 4 element, Group 5 element, Group 6 element, Group 7 element, Group 8 element, Group 9 element, GSI Helmholtz Centre for Heavy Ion Research, Half-life, Halogen, Hardness, Hartree–Fock method, Hassium, Hebrew University of Jerusalem, Homology (chemistry), HSAB theory, Hyperdeformation, Hypernucleus, Inert pair effect, International Journal of Modern Physics, International Union of Pure and Applied Chemistry, Iodide, Ion, Ionic radius, Ionization energy, Iron, Island of stability, Isotopes of xenon, John Emsley, John Wiley & Sons, Joint Institute for Nuclear Research, Joule per mole, Klein paradox, Lanthanide, Lanthanide contraction, Lanthanum, Lead, Lewis acids and bases, Ligand, Linear molecular geometry, Liquid, Livermorium, Magic number (physics), Magnesium, McGraw Hill Financial, Melting point, Mendeleev's predicted elements, Mercury (element), Mercury(IV) fluoride, Metallic bonding, Molybdenum, Nature (journal), Nature Physics, Neptunium, Neutron, Nickel, Noble gas, Nonmetal, Nuclear drip line, Nuclear isomer, Nuclear shell model, Nucleon, Nuclide, Orbital hybridisation, Osmium, Osmium tetroxide, Oxidation state, Pair production, Pekka Pyykkö, Period (periodic table), Periodic table, Phosphorus trifluoride, Picometre, Plutonium, Pnictogen, Positron, Post-transition metal, Potassium, Primordial nuclide, Proton, Quantum mechanics, Radioactive decay, Radium, Reactivity (chemistry), Relative atomic mass, Relativistic quantum chemistry, Richard Feynman, Roentgenium, Royal Society of Chemistry, Rubidium, Seaborgium, Sodium, Solid, Speed of light, Spin–orbit interaction, Springer Science+Business Media, Standard conditions for temperature and pressure, Superdeformation, Synthetic element, Systematic element name, Table of nuclides (combined), Tantalum, Tetrahedral molecular geometry, The Economist, Theory of relativity, Thorium, Thorium tetrafluoride, Titanium, Transition metal, Tungsten hexafluoride, Unbinilium, Ununennium, Ununoctium, Uranium, Uranium hexafluoride, Uranium hexoxide, Uranyl, Walter Greiner, Wave function, World Scientific, Xenon, Ytterbium. Expand index (129 more) » « Shrink index
The actinide or actinoid (IUPAC nomenclature) series encompasses the 15 metallic chemical elements with atomic numbers from 89 to 103, actinium through lawrencium.
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Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899.
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The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K),The symbols Na and K for sodium and potassium are derived from their Latin names, natrium and kalium; these are still the names for the elements in some languages, such as German and Russian.
The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table.
Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle 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.
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus.
The American Journal of Physics is a monthly, peer-reviewed scientific journal published by the American Association of Physics Teachers and the American Institute of Physics.
Amnon Marinov (1930 –2011) was born in Jerusalem in 1930 to parents who emigrated from Russia in the 1920s.
An aqueous solution is a solution in which the solvent is water.
The unified atomic mass unit (symbol: u) or dalton (symbol: Da) is the standard unit that is used for indicating mass on an atomic or molecular scale (atomic mass).
In chemistry and physics, the atomic number of a chemical element (also known as its proton number) is the number of protons found in the nucleus of an atom of that element, and therefore identical to the charge number of the nucleus.
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.
The atomic radius of a chemical element is a measure of the size of its atoms, usually the mean or typical distance from the center of the nucleus to the boundary of the surrounding cloud of electrons.
The Aufbau principle states that, hypothetically, electrons orbiting one or more atoms fill the lowest available energy levels before filling higher levels (e.g., 1s before 2s).
Barium is a chemical element with symbol Ba and atomic number 56.
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A barn (symbol b) is a unit of area.
Berkelium is a transuranic radioactive chemical element with symbol Bk and atomic number 97.
A block of the periodic table of elements is a set of adjacent groups.
In atomic physics, the Rutherford–Bohr model or Bohr model, introduced by Niels Bohr in 1913, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus—similar in structure to the solar system, but with attraction provided by electrostatic forces rather than gravity.
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.
The boron group are the chemical elements in group 13 of the periodic table, comprising boron (B), aluminium (Al), gallium (Ga), indium (In), thallium (Tl), and ununtrium (Uut).
Caesium or cesium is a chemical element with symbol Cs and atomic number 55.
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Calcium is a chemical element with symbol Ca and atomic number 20.
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The carbon group is a periodic table group consisting of carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), and flerovium (Fl).
In organic chemistry, a carbonyl group is a functional group composed of a carbon atom double-bonded to an oxygen atom: C.
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Celsius, historically known as centigrade, is a scale and unit of measurement for temperature.
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Cerium is a chemical element with symbol Ce and atomic number 58.
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The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN (derived from the name "Conseil Européen pour la Recherche Nucléaire"; see ''History'') is a European research organization that operates the largest particle physics laboratory in the world.
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The chalcogens are the chemical elements in group 16 of the periodic table.
A chemical element (or element) is a chemical substance consisting of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, Z).
Chemistry World is a monthly chemistry news magazine published by the Royal Society of Chemistry.
In chemistry, congeners are related chemical substances "related to each other by origin, structure, or function".
A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.
The covalent radius, rcov, is a measure of the size of an atom that forms part of one covalent bond.
A cyanide is any chemical compound that contains monovalent combining group CN.
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Darmstadt is a city in the state of Hesse in Germany, located in the southern part of the Rhine-Main-Area (Frankfurt Metropolitan Region).
The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.
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In particle physics, the Dirac equation is a relativistic wave equation derived by British physicist Paul Dirac in 1928.
Dubna (p) is a town in Moscow Oblast, Russia.
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In linear algebra, an eigenvector or characteristic vector of a square matrix is a vector that does not change its direction under the associated linear transformation.
Einsteinium is a synthetic element with symbol Es and atomic number 99.
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.
In physics, the electronvolt (symbol eV; also written electron volt) is a unit of energy equal to approximately 160 zeptojoules (symbol zJ) or joules (symbol J).
Enthalpy is defined as a thermodynamic potential, designated by the letter "H", that consists of the internal energy of the system (U) plus the product of pressure (p) and volume (V) of the system: Since U, p and V are all functions of the state of the thermodynamic system, enthalpy is a state function.
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Erbium is a chemical element in the lanthanide series, with symbol Er and atomic number 68.
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An extended periodic table theorizes about elements beyond element 118 (beyond period 7, or row 7).
In physics, the fine-structure constant, also known as Sommerfeld's constant, commonly denoted α (the Greek letter α), is a fundamental physical constant characterizing the strength of the electromagnetic interaction between elementary charged particles.
Flerovium is a superheavy artificial chemical element with symbol Fl and atomic number 114.
Fluoride,. According to this source, is a possible pronunciation in British English.
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Fluorine is a chemical element with symbol F and atomic number 9.
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Francium is a chemical element with symbol Fr and atomic number 87.
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Georgy Nikolayevich Flyorov (p, also written as Georgii Nikolayevich Flerov; 2 March 1913 – 19 November 1990) was a prominent Soviet Russian nuclear physicist.
Glenn Theodore Seaborg (April 19, 1912February 25, 1999) was an American chemist whose involvement in the synthesis, discovery and investigation of ten transuranium elements earned him a share of the 1951 Nobel Prize in Chemistry.
In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements.
Group 10, numbered by current IUPAC style, is the group of chemical elements in the periodic table that consists of nickel (Ni), palladium (Pd), platinum (Pt), and darmstadtium (Ds).
Group 11, by modern IUPAC numbering, is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), and gold (Au).
Group 12, by modern IUPAC numbering, is a group of chemical elements in the periodic table.
Group 3 is a group of elements in the periodic table.
Group 4 is a group of elements in the periodic table.
Group 5 (by IUPAC style) is a group of elements in the periodic table.
Group 6, numbered by IUPAC style, is a group of elements in the periodic table.
Group 7, numbered by IUPAC nomenclature, is a group of elements in the periodic table.
Group 8 is a group of chemical element in the periodic table.
Group 9, numbered by IUPAC nomenclature, is a group of chemical element in the periodic table.
The GSI Helmholtz Centre for Heavy Ion Research (GSI Helmholtzzentrum für Schwerionenforschung) is a federally and state co-funded heavy ion research center in the Arheilgen suburb of Darmstadt, Germany.
Half-life (t1⁄2) is the amount of time required for the amount of something to fall to half its initial value.
The halogens or halogen elements 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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Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a compressive force is applied.
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In computational physics and chemistry, the Hartree–Fock (HF) method is a method of approximation for the determination of the wave function and the energy of a quantum many-body system in a stationary state.
Hassium is a chemical element with symbol Hs and atomic number 108, named after the German state of Hesse.
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The Hebrew University of Jerusalem (האוניברסיטה העברית בירושלים, ha-Universita ha-Ivrit B'irushalayim; الجامعة العبرية في القدس, al-Ǧāmiʻah al-ʻIbriyyah fil-Quds; abbreviated HUJI) is Israel's second oldest university established in 1918, 30 years before the State of Israel.
In chemistry, homology refers to the appearance of homologues.
The HSAB concept is an initialism for "hard and soft (Lewis) acids and bases".
In nuclear physics, hyperdeformation is theoretically predicted states of an atomic nucleus with extremely elongated shape and very high angular momentum.
A hypernucleus is a nucleus which contains at least one hyperon in addition to nucleons.
The inert pair effect is the tendency of the electrons in the outermost atomic s orbital to remain unionized or unshared in compounds of post-transition metals.
The International Journal of Modern Physics is a series of Physics journals published by World Scientific.
The International Union of Pure and Applied Chemistry (IUPAC, or) is an international federation of National Adhering Organizations that represents chemists in individual countries.
An iodide ion is the ion I−.
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An ion is an atom or a molecule in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge.
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Ionic radius, rion, is the radius of an atom's ion.
The ionization energy (IE) is qualitatively defined as the amount of energy required to remove the most loosely bound electron of an isolated gaseous atom to form a cation.
Iron is a chemical element with symbol Fe (from ferrum) and atomic number 26.
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In nuclear physics, the island of stability is the prediction that a set of heavy isotopes with a near magic number of protons and neutrons will temporarily reverse the trend of decreasing stability in elements heavier than Uranium.
Naturally occurring xenon (Xe) is made of eight stable isotopes and one very long lived isotope.
Dr John Emsley (born 1938) is a UK popular science writer, broadcaster and academic specialising in chemistry.
John Wiley & Sons, Inc., also referred to as Wiley, is a global publishing company that specializes in academic publishing and markets its products to professionals and consumers, students and instructors in higher education, and researchers and practitioners in scientific, technical, medical, and scholarly fields.
The Joint Institute for Nuclear Research, JINR (Объединённый институт ядерных исследований, ОИЯИ), in Dubna, Moscow Oblast (110 km north of Moscow), Russia, is an international research centre for nuclear sciences, with 5500 staff members, 1200 researchers including 1000 Ph.D's from eighteen member states (including Armenia, Azerbaijan, Belarus and Kazakhstan).
The joule per mole (symbol: J·mol−1) is an SI derived unit of energy per amount of material.
In 1929, physicist Oskar Klein obtained a surprising result by applying the Dirac equation to the familiar problem of electron scattering from a potential barrier.
The lanthanide or lanthanoid series of chemical elements comprises the fifteen metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium.
Lanthanide contraction is a term used in chemistry to describe the greater-than-expected decrease in ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, which results in smaller than otherwise expected ionic radii for the subsequent elements starting with 72, hafnium.
Lanthanum is a soft, ductile, silvery-white metallic chemical element with symbol La and atomic number 57.
Lead is a chemical element in the carbon group with symbol Pb (from plumbum) and atomic number 82.
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Lewis acid is a chemical species that reacts with a Lewis base to form a Lewis adduct.
In coordination chemistry, a ligand is an ion or molecule (functional group) that binds to a central metal atom to form a coordination complex.
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In chemistry, the linear molecular geometry describes the geometry around a central atom bonded to two other atoms (or ligands) placed at a bond angle of 180°.
A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.
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Livermorium is a synthetic superheavy element with symbol Lv and atomic number 116.
In nuclear physics, a magic number is a number of nucleons (either protons or neutrons) such that they are arranged into complete shells within the atomic nucleus.
Magnesium is a chemical element with symbol Mg and atomic number 12.
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in New York City.
The melting point (or, rarely, liquefaction point) of a solid is the temperature at which it changes state from solid to liquid at atmospheric pressure.
Professor Dmitri Mendeleev published the first periodic table of the chemical elements in 1869 based on properties which appeared with some regularity as he laid out the elements from lightest to heaviest.
Mercury is a chemical element with symbol Hg and atomic number 80.
Mercury(IV) fluoride, HgF4, is the first mercury compound to be discovered with mercury in the oxidation state IV.
Metallic bonding occurs as a result of electromagnetism and describes the electrostatic attractive force that occurs between conduction electrons (in the form of an electron cloud of delocalized electrons) and positively charged metal ions.
Molybdenum is a chemical element with symbol Mo and atomic number 42.
Nature is a British interdisciplinary scientific journal, first published on 4 November 1869.
Nature Physics, is a monthly, peer reviewed, scientific journal published by the Nature Publishing Group.
Neptunium is a chemical element with symbol Np and atomic number 93.
The neutron is a subatomic particle, symbol or, with no net electric charge and a mass slightly larger than that of a proton.
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Nickel is a chemical element with symbol Ni and atomic number 28.
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The noble gases make a group of chemical elements with similar properties.
In chemistry, a nonmetal (or non-metal) is a chemical element that mostly lacks metallic attributes.
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In nuclear physics, the boundaries for nuclear particle-stability are called drip lines.
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).
In nuclear physics and nuclear chemistry, the nuclear shell model is a model of the atomic nucleus which uses the Pauli exclusion principle to describe the structure of the nucleus in terms of energy levels.
In chemistry and physics, a nucleon is one of the particles that makes up the atomic nucleus.
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A nuclide (from nucleus) is an atomic species characterized by the specific constitution of its nucleus, i.e., by its number of protons Z, its number of neutrons N, and its nuclear energy state.
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In chemistry, 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.
Osmium (from Greek osme (ὀσμή) meaning "smell") is a chemical element with symbol Os and atomic number 76.
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Osmium tetroxide (also osmium(VIII) oxide) is the chemical compound with the formula OsO4.
The oxidation state, often called the oxidation number, is an indicator of the degree of oxidation (loss of electrons) of an atom in a chemical compound.
Pair production is the creation of an elementary particle and its antiparticle, for example creating an electron and positron, a muon and antimuon, or a proton and antiproton.
Pekka Pyykkö (October 12, 1941) is a Finnish professor of Chemistry at the University of Helsinki.
In the periodic table of the elements, elements are arranged in a series of rows (or periods) so that those with similar properties appear in a column.
The periodic table is a tabular arrangement of the chemical elements, ordered by their atomic number (number of protons in the nucleus), electron configurations, and recurring chemical properties.
Phosphorus trifluoride (formula PF3), is a colorless and odorless gas.
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 one trillionth (i.e., 1/1,000,000,000,000) of a metre, which is the SI base unit of length.
Plutonium is a transuranic radioactive chemical element with symbol Pu and atomic number 94.
A pnictogen is one of the chemical elements in group 15 of the periodic table.
The positron or antielectron is the antiparticle or the antimatter counterpart of the electron.
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In chemistry, post-transition metals are the metallic elements in the periodic table located between the transition metals (to their left) and the metalloids (to their right).
Potassium is a chemical element with symbol K (derived from Neo-Latin kalium) and atomic number 19.
In geochemistry and geonuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on the Earth that have existed in their current form since before Earth was formed.
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Quantum mechanics (QM; also known as quantum physics, or quantum theory), including quantum field theory, is a fundamental branch of physics concerned with processes involving, for example, atoms and photons.
Radioactive decay, also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting radiation.
Radium is a chemical element with symbol Ra and atomic number 88.
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Reactivity in chemistry refers to.
Relative atomic mass (symbol: A) is a dimensionless physical quantity, the ratio of the average mass of atoms of an element (from a single given sample or source) to of the mass of an atom of carbon-12 (known as the unified atomic mass unit).
Relativistic quantum chemistry invokes quantum chemical and relativistic mechanical arguments to explain elemental properties and structure, especially for the heavier elements of the periodic table.
Richard Phillips Feynman, (May 11, 1918 – February 15, 1988) was an American theoretical physicist known for his work in the path integral formulation of quantum mechanics, the theory of quantum electrodynamics, and the physics of the superfluidity of supercooled liquid helium, as well as in particle physics for which he proposed the parton model.
Roentgenium is a chemical element with symbol Rg and atomic number 111.
The Royal Society of Chemistry (RSC) is a learned society (professional association) in the United Kingdom with the goal of "advancing the chemical sciences." It was formed in 1980 from the merger of the Chemical Society, the Royal Institute of Chemistry, the Faraday Society and the Society for Analytical Chemistry with a new Royal Charter and the dual role of learned society and professional body.
Rubidium is a chemical element with symbol Rb and atomic number 37.
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Seaborgium is a synthetic element with symbol Sg and atomic number 106.
Sodium is a chemical element with symbol Na (from New Latin natrium) and atomic number 11.
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Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma).
New!!: Extended periodic table and Solid ·
The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.
In quantum physics, the spin–orbit interaction (also called spin–orbit effect or spin–orbit coupling) is an interaction of a particle's spin with its motion.
Springer Science+Business Media or Springer is a global publishing company that publishes books, e-books and peer-reviewed journals in science, technical and medical (STM) publishing.
Standard conditions for temperature and pressure are standard sets of conditions for experimental measurements to be established to allow comparisons to be made between different sets of data.
In nuclear physics a superdeformed nucleus is a nucleus that is very far from spherical, forming an ellipsoid with axes in ratios of approximately 2:1:1.
In chemistry, a synthetic element is a chemical element that does not occur naturally on Earth, and can only be created artificially.
A systematic element name is the temporary name and symbol assigned to newly synthesized and not yet synthesized chemical elements.
The various tables below (scroll down) show the known isotopes of the chemical elements.
Tantalum is a chemical element with symbol Ta and atomic number 73.
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In a tetrahedral molecular geometry, a central atom is located at the center with four substituents that are located at the corners of a tetrahedron.
The Economist is an English-language weekly newspaper owned by the Economist Group and edited in offices in London.
The theory of relativity, or simply relativity in physics, usually encompasses two theories by Albert Einstein: special relativity and general relativity.
Thorium is a chemical element with symbol Th and atomic number 90.
New!!: Extended periodic table and Thorium ·
Thorium(IV) fluoride (ThF4) is an inorganic chemical compound.
Titanium is a chemical element with symbol Ti and atomic number 22.
New!!: Extended periodic table and Titanium ·
In chemistry, the term transition metal (or transition element) has two possible meanings.
Tungsten(VI) fluoride, also known as tungsten hexafluoride, is the inorganic compound of tungsten and fluorine with the formula WF6.
Unbinilium, also known as eka-radium or simply element 120, is the temporary, systematic element name of a hypothetical chemical element in the periodic table with the temporary symbol Ubn and the atomic number 120.
Ununennium, also known as eka-francium or simply element 119, is the hypothetical chemical element with atomic number 119 and symbol Uue.
Ununoctium is the temporary IUPAC name for the transactinide element with the atomic number 118 and temporary element symbol Uuo.
Uranium is a chemical element with symbol U and atomic number 92.
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Uranium hexafluoride, referred to as "hex" in the nuclear industry, is a compound used in the uranium enrichment process that produces fuel for nuclear reactors and nuclear weapons.
Uranium hexoxide is an unusual, theoretically possible compound of uranium in which the uranium atom would be attached to six oxygen atoms.
The uranyl ion is an oxycation of uranium in the oxidation state +6, with the chemical formula 2+.
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Walter Greiner (born October 29, 1935) is a German theoretical physicist.
A wave function in quantum mechanics describes the quantum state of an isolated system of one or more particles.
World Scientific Publishing is an academic publisher of scientific, technical, and medical books and journals headquartered in Singapore.
Xenon is a chemical element with symbol Xe and atomic number 54.
New!!: Extended periodic table and Xenon ·
Ytterbium is a chemical element with symbol Yb and atomic number 70.