Fermium vs Moscovium

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PropertyFm FermiumMc Moscovium
Atomic number100115
SymbolFmMc
NameFermiumMoscovium
Categoryactinidepost-transition-metal
Standard Atomic Weight257 u289 u
Period77
GroupN/A15
Blocksp
Phase at STPsolidsolid
Electron configuration[Rn] 5f12 7s2[Rn] 7s2 7p3 5f14 6d10(predicted)
Oxidation states[2, 3][1, 3]
Electronegativity (Pauling)1.3N/A
Electron affinity0.339 eV0.3 eV
Density9700 kg/m³1.350000e+4 kg/m³
Melting point1526.85 °C396.85 °C
Boiling point-273.15 °C1126.85 °C
Discovery year19522004