Roentgenium (Rg) in the periodic table — PeriodicTable

Roentgenium (Rg) in the periodic tableRoentgenium is element 111, a transition metal of the d block, in group 11, period 7. Its ground-state configuration is [Rn] 5f14 6d9 7s2, and it usually shows the oxidation states 0.It was discovered in 1994.Name origin: Wilhelm Conrad Röntgen, physicist. Blank rows are columns the sheet does not measure for this element.

Property

Value

Unit

Atomic weight

281

Da

First ionisation energy

1022.7

kJ/mol

Density

28.7

g/cm³

Abundance

0

mg/kg

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