Periodic Table of the Elements
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name Plutonium
latin Plutonium
french Plutonium
german Plutonium
symbol Pu
proton number 94
atomic weight [244]
Pauling electronegativity 1.28
electronic configuration [Rn] 5f66d07s2
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melting point 912.5 K, 639.35°C, 1182.83°F
boiling point 3503 K, 3230°C, 5846°F
group -
period 7
state (by 20°C) solid
oxidation states +3, +4, +5, +6
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Year of discovery Discoverers
1940 Glenn T. Seaborg (*1912)
J. W. Kennedy
Edwin M. McMillan (1907-1991)
A. C. Wahl

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