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Plutonium is a chemical element; it has symbol Pu and atomic number 94. It is an actinide metal of silvery-gray appearance that tarnishes when exposed to air, and forms a dull coating when oxidized. The element normally exhibits six allotropes and four oxidation states.
Element Plutonium (Pu), Group 20, Atomic Number 94, f-block, Mass [244]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
May 21, 2024 · plutonium (Pu), radioactive chemical element of the actinoid series of the periodic table, atomic number 94. It is the most important transuranium element because of its use as fuel in certain types of nuclear reactors and as an ingredient in nuclear weapons.
- The element symbol for plutonium is Pu, rather than Pl, because this was a more amusing, easily remembered symbol. The element was synthetically produced by Glenn T. Seaborg, Edwin M. McMillan, J.W. Kennedy, and A.C.
- Pure plutonium is a silvery-white metal, although it quickly oxidizes in air to a dull finish.
- The atomic number of plutonium is 94, meaning all atoms of plutonium have 94 protons. It has an atomic weight around 244, a melting point of 640 degrees C (1183 degrees F), and a boiling point of 3228 degrees C (5842 degrees F).
- Plutonium oxide forms on the surface of plutonium exposed to air. The oxide is pyrophoric, so pieces of plutonium might glow like embers as the outer coating burns.
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Atomic Number:94 Symbol:Pu Atomic Weight:244.0642 Discovery: G.T. Seaborg, J.W. Kennedy, E.M. McMillan, A.C. Wohl (1940, United States). The first sample of plutonium was produced by deuteron bombardment of uranium in a cyclotron at the University of California at Berkeley. The reaction produced neptunium-238, which decayed via beta emission to for...
Density (g/cc):19.84 Melting Point (K):914 Boiling Point (K):3505 Appearance:silvery-white, radioactive metal Atomic Radius (pm):151 Ionic Radius:93 (+4e) 108 (+3e) Fusion Heat (kJ/mol):2.8 Evaporation Heat (kJ/mol):343.5 Pauling Negativity Number:1.28 First Ionizing Energy (kJ/mol):491.9 Oxidation States:6, 5, 4, 3 Lattice Structure:Monoclinic
Emsley, John (2011). Nature's Building Blocks: An A-Z Guide to the Elements. Oxford University Press. ISBN 978-0-19-960563-7.Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements(2nd ed.). Butterworth-Heinemann. ISBN 978-0-08-037941-8.Hammond, C. R. (2004). The Elements, in Handbook of Chemistry and Physics(81st ed.). CRC press. ISBN 978-0-8493-0485-9.Seaborg, Glenn T. The Plutonium Story. Lawrence Berkeley Laboratory, University of California. LBL-13492, DE82 004551.Plutonium is a radioactive metal in the actinide series with 15 known isotopes. It is used for nuclear weapons and power, but it is also toxic and hazardous to human health.
Dec 13, 2021 · Atomic number 94. The element plutonium was discovered only 81 years ago, but its impact on the world has been monumental. On December 14, 1940, chemist Glenn Seaborg and his colleagues at the Berkeley Radiation Laboratory used a 60-inch cyclotron to bombard the element uranium with deuterons.
Chemical symbol: Pu. Atomic number: 94. A crystal structure containing Plutonium: One of the four new [Pu (IV)Cl n (NO 3) 6-n] 2- containing materials. It was crystallized from acidic, aqueous media and structurally characterized. Facts about this structure: Formula: [Cl4 N2 O6 Pu]2-, 2 (C5 H5 I N +)
