Phosphorus vs Terbium

PropertyP PhosphorusTb Terbium
Atomic number1565
SymbolPTb
NamePhosphorusTerbium
Categorynonmetallanthanide
Standard Atomic Weight30.973762 u158.92535 u
Period36
Group15N/A
Blockps
Phase at STPsolidsolid
Electron configuration[Ne]3s23p3[Xe]6s24f9
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][0, 1, 2, 3, 4]
Electronegativity (Pauling)2.19N/A
Electron affinity0.7466 eV1.124 eV
Density1820 kg/m³8230 kg/m³
Melting point44.15 °C1355.85 °C
Boiling point280.5 °C3229.85 °C
Discovery year16691843