Beryllium vs Bohrium

PropertyBe BerylliumBh Bohrium
Atomic number4107
SymbolBeBh
NameBerylliumBohrium
Categoryalkaline-earth-metaltransition-metal
Standard Atomic Weight9.012183 u270 u
Period27
Group27
Blockss
Phase at STPsolidN/A
Electron configuration[He]2s2[Rn]7s25f146d5
Oxidation states[0, 1, 2][3, 4, 5, 7]
Electronegativity (Pauling)1.57N/A
Electron affinity-0.52 eV0.44 eV
Density1850 kg/m³3.710000e+4 kg/m³
Melting point1286.85 °C-273.15 °C
Boiling point2470.85 °C-273.15 °C
Discovery year17971976