Magnesium vs Terbium

PropertyMg MagnesiumTb Terbium
Atomic number1265
SymbolMgTb
NameMagnesiumTerbium
Categoryalkaline-earth-metallanthanide
Standard Atomic Weight24.3055 u158.92535 u
Period36
Group2N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Ne]3s2[Xe]6s24f9
Oxidation states[0, 1, 2][0, 1, 2, 3, 4]
Electronegativity (Pauling)1.31N/A
Electron affinity-0.4 eV1.124 eV
Density1740 kg/m³8230 kg/m³
Melting point649.85 °C1355.85 °C
Boiling point1089.85 °C3229.85 °C
Discovery year17551843