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Actinium

Index Actinium

Actinium is a chemical element with symbol Ac and atomic number 89. [1]

118 relations: Acetaldehyde, Acetate, Acetyl group, Actinide, Actinium(III) oxide, Alkali metal, Alpha decay, Alpha particle, Aluminium bromide, Ammonia, Ammonia solution, Ancient Greek, André-Louis Debierne, Atomic number, Benzene, Beryllium, Beta decay, Beta particle, Bismuth-209, Breast cancer, Carbon disulfide, Carbon tetrachloride, Charles Janet, Chelation, Chemical element, Citric acid, Crystal structure, Cubic crystal system, Cyclotron, Decay chain, Deuterium, Dmitri Mendeleev, DOTA (chelator), Electride, Electron capture, Elution, Ethylenediaminetetraacetic acid, Formula unit, Friedrich Oskar Giesel, Glenn T. Seaborg, Glovebox, Great Soviet Encyclopedia, Half-life, Harriet Brooks, HER2/neu, Hexagonal crystal family, Hydrochloric acid, Hydrofluoric acid, Hydrogen sulfide, Institute for Transuranium Elements, ..., Ion chromatography, Isomorphism (crystallography), Isotope, Isotopes of lead, Isotopes of neptunium, Isotopes of thallium, Isotopes of thorium, Laboratory, Lanthanide, Lanthanum, Lawrencium, Lead, Leukemia, Linear particle accelerator, Liquid–liquid extraction, Lithium, Lymphoma, Marie Curie, Monoclonal antibody, Monosodium phosphate, Neuroblastoma, Neutron imaging, Neutron probe, Neutron source, Nitric acid, Noble gas, Nuclear isomer, Nuclear reactor, Otto Hahn, Otto Sackur, Ovarian cancer, Oxalate, Oxidation state, Oxohalide, Pearson symbol, Pentetic acid, Periodic table, Periodic Videos, PH, Pierre Curie, Plutonium-239, Polonium, Primordial nuclide, Prostate cancer, Protactinium, Radiation therapy, Radioactive decay, Radioisotope thermoelectric generator, Radionuclide, Radium, Radon, Receptor (biochemistry), Relative atomic mass, Resin, Shear modulus, Space group, St George Hospital (Sydney), Tetragonal crystal system, Thorium, Titanium, Tonne, Transition metal, Trastuzumab, Unified atomic mass unit, Uraninite, Uranium, Uranium-233, Uranium-235. Expand index (68 more) »

Acetaldehyde

Acetaldehyde (systematic name ethanal) is an organic chemical compound with the formula CH3CHO, sometimes abbreviated by chemists as MeCHO (Me.

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Acetate

An acetate is a salt formed by the combination of acetic acid with an alkaline, earthy, metallic or nonmetallic and other base.

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Acetyl group

In organic chemistry, acetyl is a moiety, the acyl with chemical formula CH3CO.

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Actinide

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(III) oxide

Actinium(III) oxide is a chemical compound containing the rare radioactive element actinium.

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Alkali metal

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.

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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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Aluminium bromide

Aluminium bromide is any chemical compound with the empirical formula AlBrx.

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Ammonia

Ammonia is a compound of nitrogen and hydrogen with the formula NH3.

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Ammonia solution

Ammonia solution, also known as ammonia water, ammoniacal liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or (inaccurately) ammonia, is a solution of ammonia in water.

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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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André-Louis Debierne

André-Louis Debierne (14 July 1874 – 31 August 1949) was a French chemist and is considered the discoverer of the element actinium.

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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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Benzene

Benzene is an important organic chemical compound with the chemical formula C6H6.

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Beryllium

Beryllium is a chemical element with symbol Be and atomic number 4.

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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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Beta particle

A beta particle, also called beta ray or beta radiation, (symbol β) is a high-energy, high-speed electron or positron emitted by the radioactive decay of an atomic nucleus during the process of beta decay.

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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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Breast cancer

Breast cancer is cancer that develops from breast tissue.

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Carbon disulfide

Carbon disulfide is a colorless volatile liquid with the formula CS2.

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Carbon tetrachloride

Carbon tetrachloride, also known by many other names (the most notable being tetrachloromethane, also recognized by the IUPAC, carbon tet in the cleaning industry, Halon-104 in firefighting, and Refrigerant-10 in HVACR) is an organic compound with the chemical formula CCl4.

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Charles Janet

Charles Janet (15 June 1849 – 7 February 1932) was a French engineer, company director, inventor and biologist.

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Chelation

Chelation is a type of bonding of ions and molecules to metal ions.

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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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Citric acid

Citric acid is a weak organic acid that has the chemical formula.

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Crystal structure

In crystallography, crystal structure is a description of the ordered arrangement of atoms, ions or molecules in a crystalline material.

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Cubic crystal system

In crystallography, the cubic (or isometric) crystal system is a crystal system where the unit cell is in the shape of a cube.

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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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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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Deuterium

Deuterium (or hydrogen-2, symbol or, also known as heavy hydrogen) is one of two stable isotopes of hydrogen (the other being protium, or hydrogen-1).

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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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DOTA (chelator)

DOTA (also known as tetraxetan) is an organic compound with the formula (CH2CH2NCH2CO2H)4.

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Electride

An electride is a ionic compound in which an electron is the anion.

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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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Elution

In analytical and organic chemistry, elution is the process of extracting one material from another by washing with a solvent; as in washing of loaded ion-exchange resins to remove captured ions.

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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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Formula unit

A formula unit in chemistry is the empirical formula of any ionic or covalent network solid compound used as an independent entity for stoichiometric calculations.

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Friedrich Oskar Giesel

Friedrich Oskar Giesel (20 May 1852 – 13 November 1927, known as Fritz) was a German organic chemist.

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Glenn T. Seaborg

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.

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Glovebox

A glovebox (or glove box) is a sealed container that is designed to allow one to manipulate objects where a separate atmosphere is desired.

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Great Soviet Encyclopedia

The Great Soviet Encyclopedia (GSE; Большая советская энциклопедия, БСЭ, Bolshaya sovetskaya entsiklopediya) is one of the largest Russian-language encyclopedias, published by the Soviet state from 1926 to 1990, and again since 2002 by Russia (under the name Bolshaya Rossiyskaya entsiklopediya or Great Russian Encyclopedia).

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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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Harriet Brooks

Harriet Brooks (July 2, 1876 – April 17, 1933) was the first Canadian female nuclear physicist.

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HER2/neu

Receptor tyrosine-protein kinase erbB-2, also known as CD340 (cluster of differentiation 340), proto-oncogene Neu, Erbb2 (rodent), or ERBB2 (human), is a protein that in humans is encoded by the ERBB2 gene.

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Hexagonal crystal family

In crystallography, the hexagonal crystal family is one of the 6 crystal families, which includes 2 crystal systems (hexagonal and trigonal) and 2 lattice systems (hexagonal and rhombohedral).

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Hydrochloric acid

Hydrochloric acid is a colorless inorganic chemical system with the formula.

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Hydrofluoric acid

Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water.

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Hydrogen sulfide

Hydrogen sulfide is the chemical compound with the chemical formula H2S.

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Institute for Transuranium Elements

The Institute for Transuranium Elements (ITU) was a nuclear research institute in Karlsruhe, Germany.

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Ion chromatography

Ion chromatography (or ion-exchange chromatography) is a chromatography process that separates ions and polar molecules based on their affinity to the ion exchanger.

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Isomorphism (crystallography)

In crystallography crystals are described as isomorphous if they are closely similar in shape.

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Isotope

Isotopes are variants of a particular chemical element which differ in neutron number.

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Isotopes of lead

Lead (82Pb) has four stable isotopes: 204Pb, 206Pb, 207Pb, 208Pb.

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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 thallium

Thallium (81Tl) has 37 isotopes with atomic masses that range from 176 to 212.

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Isotopes of thorium

Although thorium (90Th) has 6 naturally occurring isotopes, none of these isotopes are stable; however, one isotope, 232Th, is relatively stable, with a half-life of 1.405×1010 years, considerably longer than the age of the Earth, and even slightly longer than the generally accepted age of the universe.

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Laboratory

A laboratory (informally, lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed.

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Lanthanide

The lanthanide or lanthanoid series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57 through 71, from lanthanum through lutetium.

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Lanthanum

Lanthanum is a chemical element with symbol La and atomic number 57.

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Lawrencium

Lawrencium is a synthetic chemical element with symbol Lr (formerly Lw) and atomic number 103.

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Lead

Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.

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Leukemia

Leukemia, also spelled leukaemia, is a group of cancers that usually begin in the bone marrow and result in high numbers of abnormal white blood cells.

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Linear particle accelerator

A linear particle accelerator (often shortened to linac) is a type of particle accelerator that accelerates charged subatomic particles or ions to a high speed by subjecting them to a series of oscillating electric potentials along a linear beamline.

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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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Lithium

Lithium (from lit) is a chemical element with symbol Li and atomic number 3.

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Lymphoma

Lymphoma is a group of blood cancers that develop from lymphocytes (a type of white blood cell).

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Marie Curie

Marie Skłodowska Curie (born Maria Salomea Skłodowska; 7 November 18674 July 1934) was a Polish and naturalized-French physicist and chemist who conducted pioneering research on radioactivity.

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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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Monosodium phosphate

Monosodium phosphate (MSP), also known as monobasic sodium phosphate and sodium dihydrogen phosphate, is an inorganic compound of sodium with a dihydrogen phosphate (H2PO4−) anion.

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Neuroblastoma

Neuroblastoma (NB) is a type of cancer that forms in certain types of nerve tissue. It most frequently starts from one of the adrenal glands, but can also develop in the neck, chest, abdomen, or spine. Symptoms may include bone pain, a lump in the abdomen, neck, or chest, or a painless bluish lump under the skin. Occasionally, neuroblastoma may be due to a mutation inherited from a person's parents. Environmental factors have not been found to be involved. Diagnosis is based on a tissue biopsy. Occasionally it may be found in a baby by ultrasound during pregnancy. At diagnosis, the cancer has usually already spread. The cancer is divided into low-, intermediate-, and high-risk groups based on a child's age, cancer stage, and what the cancer looks like. Treatment and outcomes depends on the risk group a person is in. Treatments may include observation, surgery, radiation, chemotherapy, or stem cell transplantation. Low-risk disease in babies typically has a good outcome with surgery or simply observation. In high-risk disease, chances of long-term survival, however, are less than 40% despite aggressive treatment. Neuroblastoma is the most common cancer in babies and the third-most common cancer in children after leukemia and brain cancer. About one in every 7,000 children is affected at some time. About 90% of cases occur in children less than 5 years old and it is rare in adults. Of cancer deaths in children, about 15% are due to neuroblastoma. The disease was first described in the 1800s.

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Neutron imaging

Neutron imaging is the process of making an image with neutrons.

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Neutron probe

A neutron probe is a device used to measure the quantity of water present in soil.

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Neutron source

A neutron source is any device that emits neutrons, irrespective of the mechanism used to produce the neutrons.

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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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Noble gas

The noble gases (historically also the inert gases) make up a group of chemical elements with similar properties; under standard conditions, they are all odorless, colorless, monatomic gases with very low chemical reactivity.

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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 reactor

A nuclear reactor, formerly known as an atomic pile, is a device used to initiate and control a self-sustained nuclear chain reaction.

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Otto Hahn

Otto Hahn, (8 March 1879 – 28 July 1968) was a German chemist and pioneer in the fields of radioactivity and radiochemistry.

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Otto Sackur

Otto Sackur (28 September 1880 in Breslau, Germany – 17 December 1914 in Berlin, Germany) was a German physical chemist.

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Ovarian cancer

Ovarian cancer is a cancer that forms in or on an ovary.

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Oxalate

Oxalate (IUPAC: ethanedioate) is the dianion with the formula, also written.

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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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Oxohalide

Molecular oxohalides (oxyhalides) are a group of chemical compounds in which both oxygen and halogen atoms are attached to another chemical element A in a single molecule.

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Pearson symbol

The Pearson symbol, or Pearson notation, is used in crystallography as a means of describing a crystal structure, and was originated by W.B. Pearson.

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Pentetic acid

Pentetic acid or diethylenetriaminepentaacetic acid (DTPA) is an aminopolycarboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups.

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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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Pierre Curie

Pierre Curie (15 May 1859 – 19 April 1906) was a French physicist, a pioneer in crystallography, magnetism, piezoelectricity and radioactivity.

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Plutonium-239

Plutonium-239 is an isotope of plutonium.

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Polonium

Polonium is a chemical element with symbol Po and atomic number 84.

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Primordial nuclide

In geochemistry, geophysics and geonuclear physics, primordial nuclides, also known as primordial isotopes, are nuclides found on Earth that have existed in their current form since before Earth was formed.

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Prostate cancer

Prostate cancer is the development of cancer in the prostate, a gland in the male reproductive system.

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Protactinium

Protactinium (formerly protoactinium) is a chemical element with symbol Pa and atomic number 91.

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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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Radioisotope thermoelectric generator

A Radioisotope Thermoelectric Generator (RTG, RITEG) is an electrical generator that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.

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Radionuclide

A radionuclide (radioactive nuclide, radioisotope or radioactive isotope) is an atom that has excess nuclear energy, making it unstable.

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Radium

Radium is a chemical element with symbol Ra and atomic number 88.

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Radon

Radon is a chemical element with symbol Rn and atomic number 86.

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Receptor (biochemistry)

In biochemistry and pharmacology, a receptor is a protein molecule that receives chemical signals from outside a cell.

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Relative atomic mass

Relative atomic mass (symbol: A) or atomic weight is a dimensionless physical quantity defined as the ratio of the average mass of atoms of a chemical element in a given sample to one unified atomic mass unit.

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Resin

In polymer chemistry and materials science, resin is a "solid or highly viscous substance" of plant or synthetic origin that is typically convertible into polymers.

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Shear modulus

In materials science, shear modulus or modulus of rigidity, denoted by G, or sometimes S or μ, is defined as the ratio of shear stress to the shear strain: where The derived SI unit of shear modulus is the pascal (Pa), although it is usually expressed in gigapascals (GPa) or in thousands of pounds per square inch (ksi).

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Space group

In mathematics, physics and chemistry, a space group is the symmetry group of a configuration in space, usually in three dimensions.

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St George Hospital (Sydney)

The St George Hospital and Community Health Service is a tertiary referral hospital located in Kogarah, a southern suburb of Sydney, NSW, Australia.

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Tetragonal crystal system

In crystallography, the tetragonal crystal system is one of the 7 crystal systems.

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Thorium

Thorium is a weakly radioactive metallic chemical element with symbol Th and atomic number 90.

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Titanium

Titanium is a chemical element with symbol Ti and atomic number 22.

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Tonne

The tonne (Non-SI unit, symbol: t), commonly referred to as the metric ton in the United States, is a non-SI metric unit of mass equal to 1,000 kilograms;.

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Transition metal

In chemistry, the term transition metal (or transition element) has three possible meanings.

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Trastuzumab

Trastuzumab, sold under the brand name Herceptin among others, is a monoclonal antibody used to treat breast cancer.

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Unified atomic mass unit

The unified atomic mass unit or dalton (symbol: u, or Da) is a standard unit of mass that quantifies mass on an atomic or molecular scale (atomic mass).

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Uraninite

Uraninite, formerly pitchblende, is a radioactive, uranium-rich mineral and ore with a chemical composition that is largely UO2, but due to oxidation the mineral typically contains variable proportions of U3O8.

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Uranium

Uranium is a chemical element with symbol U and atomic number 92.

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Uranium-233

Uranium-233 is a fissile isotope of uranium that is bred from thorium-232 as part of the thorium fuel cycle.

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Uranium-235

Uranium-235 (235U) is an isotope of uranium making up about 0.72% of natural uranium.

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Redirects here:

7440-34-8, Ac (element), Element 89, Emanium, Radioactinium.

References

[1] https://en.wikipedia.org/wiki/Actinium

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