Rhodium vs Lawrencium

PropertyRh RhodiumLr Lawrencium
Atomic number45103
SymbolRhLr
NameRhodiumLawrencium
Categorytransition-metalactinide
Standard Atomic Weight102.9055 u262 u
Period57
Group93
Blockss
Phase at STPsolidsolid
Electron configuration[Kr]5s14d8[Rn]7s25f146d1
Oxidation states[-3, -1, 1, 2, 3, 4, 5, 6, 7][3]
Electronegativity (Pauling)2.28N/A
Electron affinity1.137 eV0.315 eV
Density1.240000e+4 kg/m³1.560000e+4 kg/m³
Melting point1963.85 °C1626.85 °C
Boiling point3694.85 °C-273.15 °C
Discovery year18031961