Boron vs Bohrium

PropertyB BoronBh Bohrium
Atomic number5107
SymbolBBh
NameBoronBohrium
Categorymetalloidtransition-metal
Standard Atomic Weight10.8135 u270 u
Period27
Group137
Blockps
Phase at STPsolidN/A
Electron configuration[He]2s22p1[Rn]7s25f146d5
Oxidation states[-5, -1, 0, 1, 2, 3][3, 4, 5, 7]
Electronegativity (Pauling)2.04N/A
Electron affinity0.27972 eV0.44 eV
Density2370 kg/m³3.710000e+4 kg/m³
Melting point2074.85 °C-273.15 °C
Boiling point3999.85 °C-273.15 °C
Discovery year18081976