Magnesium vs Ruthenium

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PropertyMg MagnesiumRu Ruthenium
Atomic number1244
SymbolMgRu
NameMagnesiumRuthenium
Categoryalkaline-earth-metaltransition-metal
Standard Atomic Weight24.3055 u101.07 u
Period35
Group28
Blockss
Phase at STPsolidsolid
Electron configuration[Ne]3s2[Kr]5s14d7
Oxidation states[0, 1, 2][-4, -2, 1, 2, 3, 4, 5, 6, 7, 8]
Electronegativity (Pauling)1.312.2
Electron affinity-0.4 eV1.05 eV
Density1740 kg/m³1.210000e+4 kg/m³
Melting point649.85 °C2333.85 °C
Boiling point1089.85 °C4149.85 °C
Discovery year17551828