Boron vs Oganesson

PropertyB BoronOg Oganesson
Atomic number5118
SymbolBOg
NameBoronOganesson
Categorymetalloidnoble-gas
Standard Atomic Weight10.8135 u294 u
Period27
Group1318
Blockpp
Phase at STPsolidgas
Electron configuration[He]2s22p1[Rn] 7s2 7p6 5f14 6d10(predicted)
Oxidation states[-5, -1, 0, 1, 2, 3][-1, 0, 1, 2, 4, 6]
Electronegativity (Pauling)2.04N/A
Electron affinity0.27972 eV0.056 eV
Density2370 kg/m³7000 kg/m³
Melting point2074.85 °C-273.15 °C
Boiling point3999.85 °C-243.15 °C
Discovery year18082006