Bromine vs Gadolinium

PropertyBr BromineGd Gadolinium
Atomic number3564
SymbolBrGd
NameBromineGadolinium
Categoryhalogenlanthanide
Standard Atomic Weight79.904 u157.25 u
Period46
Group17N/A
Blockps
Phase at STPliquidsolid
Electron configuration[Ar]4s23d104p5[Xe]6s24f75d1
Oxidation states[-1, 1, 2, 3, 4, 5, 7][0, 1, 2, 3]
Electronegativity (Pauling)2.961.2
Electron affinity3.3635 eV0.132 eV
Density3102.8 kg/m³7900 kg/m³
Melting point-7.2 °C1312.85 °C
Boiling point58.8 °C3272.85 °C
Discovery year18251886