Chromium vs Nihonium

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PropertyCr ChromiumNh Nihonium
Atomic number24113
SymbolCrNh
NameChromiumNihonium
Categorytransition-metalpost-transition-metal
Standard Atomic Weight51.9961 u286 u
Period47
Group613
Blocksp
Phase at STPsolidsolid
Electron configuration[Ar]3d54s1[Rn] 5f14 6d10 7s2 7p1(predicted)
Oxidation states[-4, -2, -1, 0, 1, 2, 3, 4, 5, 6]N/A
Electronegativity (Pauling)1.66N/A
Electron affinity0.675 eV0.6 eV
Density7150 kg/m³1.600000e+4 kg/m³
Melting point1906.85 °C426.85 °C
Boiling point2670.85 °C1156.85 °C
Discovery year17972004