Cadmium vs Californium

PropertyCd CadmiumCf Californium
Atomic number4898
SymbolCdCf
NameCadmiumCalifornium
Categorytransition-metalactinide
Standard Atomic Weight112.414 u251 u
Period57
Group12N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s24d10[Rn]7s25f10
Oxidation states[-2, 1, 2][2, 3, 4, 5]
Electronegativity (Pauling)1.691.3
Electron affinity-0.7 eV-0.5 eV
Density8690 kg/m³1.510000e+4 kg/m³
Melting point321.07 °C899.85 °C
Boiling point766.85 °C-273.15 °C
Discovery year18171950