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Roentgenium

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name Roentgenium
latin Roentgenium
french Roentgenium
german Roentgenium
symbol Rg
proton number 111
atomic weight [272]
Pauling electronegativity -
electronic configuration [Rn] 5f146d107s1
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melting point -
boiling point -
group 11
period 7
state (by 20°C) solid
oxidation states -
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printable version


discussion board
discussion board
(2)

Discoverer

Year of discovery Discoverers
1994 S. Hofmann
V. Ninov
F. P. Hessberger
Peter Armbruster
H. Folger
Gottfried Münzenberg
and others from GSI (Darmstadt, Germany)

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