Nickel vs Rhodium

PropertyNi NickelRh Rhodium
Atomic number2845
SymbolNiRh
NameNickelRhodium
Categorytransition-metaltransition-metal
Standard Atomic Weight58.6934 u102.9055 u
Period45
Group109
Blockss
Phase at STPsolidsolid
Electron configuration[Ar]4s23d8[Kr]5s14d8
Oxidation states[-2, -1, 0, 1, 2, 3, 4][-3, -1, 1, 2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)1.912.28
Electron affinity1.156 eV1.137 eV
Density8912 kg/m³1.240000e+4 kg/m³
Melting point1454.85 °C1963.85 °C
Boiling point2912.85 °C3694.85 °C
Discovery year17511803