Neptunium vs Moscovium

PropertyNp NeptuniumMc Moscovium
Atomic number93115
SymbolNpMc
NameNeptuniumMoscovium
Categoryactinidepost-transition-metal
Standard Atomic Weight237 u289 u
Period77
GroupN/A15
Blocksp
Phase at STPsolidsolid
Electron configuration[Rn]7s25f46d1[Rn] 7s2 7p3 5f14 6d10(predicted)
Oxidation states[2, 3, 4, 5, 6, 7][1, 3]
Electronegativity (Pauling)1.36N/A
Electron affinity0.48 eV0.3 eV
Density2.025000e+4 kg/m³1.350000e+4 kg/m³
Melting point643.85 °C396.85 °C
Boiling point3901.85 °C1126.85 °C
Discovery year19402004