Cadmium vs Rutherfordium

PropertyCd CadmiumRf Rutherfordium
Atomic number48104
SymbolCdRf
NameCadmiumRutherfordium
Categorytransition-metaltransition-metal
Standard Atomic Weight112.414 u263 u
Period57
Group124
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s24d10[Rn]7s25f146d2
Oxidation states[-2, 1, 2][3, 4]
Electronegativity (Pauling)1.69N/A
Electron affinity-0.7 eV0.65 eV
Density8690 kg/m³2.330000e+4 kg/m³
Melting point321.07 °C2126.85 °C
Boiling point766.85 °C5526.85 °C
Discovery year18171964