Name :  Plutonium
Symbol :  Pu
Atomic Number :  94
Atomic Weight :  244.0642
Specific Heat :  0.13 J/gK
Melting Point :  641°C
Vaporization :  344.0 kJ/mol
Boiling Point :  3232°C
Electronegativity :  1.28
Density@293 K :  19.8 g/cm³
Discovered :  G.T.Seaborg, J.W.Kennedy, E.M.McMillan, A.C.Wohl, United States, 1940
Description :  Silvery-white, extremely radioactive artificially produced metal.
Uses :  Used in bombs and reactors. Small quantities are used in thermo-electric generators.