Bromine vs Osmium

← Back to Periodic Table
PropertyBr BromineOs Osmium
Atomic number3576
SymbolBrOs
NameBromineOsmium
Categoryhalogentransition-metal
Standard Atomic Weight79.904 u190.23 u
Period46
Group178
Blockps
Phase at STPliquidsolid
Electron configuration[Ar]4s23d104p5[Xe]6s24f145d6
Oxidation states[-1, 1, 2, 3, 4, 5, 7][-4, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8]
Electronegativity (Pauling)2.962.2
Electron affinity3.3635 eV1.1 eV
Density3102.8 kg/m³2.258720e+4 kg/m³
Melting point-7.2 °C3032.85 °C
Boiling point58.8 °C5011.85 °C
Discovery year18251803