Nitrogen vs Fermium

PropertyN NitrogenFm Fermium
Atomic number7100
SymbolNFm
NameNitrogenFermium
Categorynonmetalactinide
Standard Atomic Weight14.006855 u257 u
Period27
Group15N/A
Blockss
Phase at STPgassolid
Electron configuration2s2.2p3[Rn] 5f12 7s2
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5][2, 3]
Electronegativity (Pauling)3.041.3
Electron affinity-0.07 eV0.339 eV
Density1.2506 kg/m³9700 kg/m³
Melting point-210 °C1526.85 °C
Boiling point-195.79 °C-273.15 °C
Discovery year17721952