Bromine vs Rutherfordium

← Back to Periodic Table
PropertyBr BromineRf Rutherfordium
Atomic number35104
SymbolBrRf
NameBromineRutherfordium
Categoryhalogentransition-metal
Standard Atomic Weight79.904 u263 u
Period47
Group174
Blockps
Phase at STPliquidsolid
Electron configuration[Ar]4s23d104p5[Rn]7s25f146d2
Oxidation states[-1, 1, 2, 3, 4, 5, 7][3, 4]
Electronegativity (Pauling)2.96N/A
Electron affinity3.3635 eV0.65 eV
Density3102.8 kg/m³2.330000e+4 kg/m³
Melting point-7.2 °C2126.85 °C
Boiling point58.8 °C5526.85 °C
Discovery year18251964