Rubidium vs Palladium

PropertyRb RubidiumPd Palladium
Atomic number3746
SymbolRbPd
NameRubidiumPalladium
Categoryalkali-metaltransition-metal
Standard Atomic Weight85.4678 u106.42 u
Period55
Group110
Blocksd
Phase at STPsolidsolid
Electron configuration[Kr]5s1[Kr]4d10
Oxidation states[-1, 1][1, 2, 3, 4, 5]
Electronegativity (Pauling)0.822.2
Electron affinity0.4859 eV0.557 eV
Density1530 kg/m³1.200000e+4 kg/m³
Melting point39.31 °C1554.9 °C
Boiling point687.85 °C2962.85 °C
Discovery year18611803