Seaborgium vs Bohrium

Side-by-side comparison of Seaborgium (Sg, element 106) and Bohrium (Bh, element 107) by atomic structure and physical properties.

PropertySg Seaborgium Bh Bohrium
Atomic number106107
SymbolSgBh
NameSeaborgiumBohrium
Categorytransition-metaltransition-metal
Standard Atomic Weight269 u270 u
Period77
Group67
Blockdd
Phase at STPN/AN/A
Electron configuration[Rn]5f146d47s2[Rn]5f146d57s2
Oxidation states[3, 4, 5, 6][3, 4, 5, 7]
Electronegativity (Pauling)N/AN/A
Electron affinity0.85 eV0.44 eV
Density3.5e+4 kg/m³3.71e+4 kg/m³
Melting pointN/AN/A
Boiling pointN/AN/A
Discovery year19741981

Key Differences

PropertySg SeaborgiumBh Bohrium
Standard Atomic Weight269 u ↓ lower270 u ↑ higher
Density3.5e+4 kg/m³ ↓ lower3.71e+4 kg/m³ ↑ higher
Electron affinity0.85 eV ↑ higher0.44 eV ↓ lower
Group6 7
Electron configuration[Rn]5f146d47s2 [Rn]5f146d57s2
Discovery year1974 1981