Rhodium vs Berkelium

PropertyRh RhodiumBk Berkelium
Atomic number4597
SymbolRhBk
NameRhodiumBerkelium
Categorytransition-metalactinide
Standard Atomic Weight102.9055 u247 u
Period57
Group9N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d8[Rn]7s25f9
Oxidation states[-3, -1, 1, 2, 3, 4, 5, 6, 7][2, 3, 4, 5]
Electronegativity (Pauling)2.281.3
Electron affinity1.137 eV-0.5 eV
Density1.240000e+4 kg/m³1.400000e+4 kg/m³
Melting point1963.85 °C1049.85 °C
Boiling point3694.85 °C-273.15 °C
Discovery year18031949