Oxygen vs Neodymium

PropertyO OxygenNd Neodymium
Atomic number860
SymbolONd
NameOxygenNeodymium
Categorynonmetallanthanide
Standard Atomic Weight15.9994 u144.242 u
Period26
Group16N/A
Blockps
Phase at STPgassolid
Electron configuration[He]2s22p4[Xe]6s24f4
Oxidation states[-2, -1, 0, 1, 2][0, 2, 3, 4]
Electronegativity (Pauling)3.441.14
Electron affinity1.4611 eV1.913 eV
Density1.429 kg/m³7010 kg/m³
Melting point-218.79 °C1020.85 °C
Boiling point-182.95 °C3073.85 °C
Discovery year17711841