Comparisons / Comparison of Roentgenium and Copernicium

Comparison of Roentgenium and Copernicium [S]ave

Attribute
Roentgenium
×

Copernicium
×
Discovered (year)19941996
Atomic number111112
Group nameTransition metalTransition metal
Oxidation states
  • -1
  • 1
  • 3
  • 5
  • 0
  • 1
  • 2
Electron configuration[Rn]7s²5f¹⁴6d⁹ (predicted)[Rn]7s²5f¹⁴6d¹⁰ (predicted)
Atomic mass (u)282.169286.179
1Standard stateSolid (expected)Solid (expected)
SymbolRgCn



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