Stable isotope Nihonium (Nh)

Isotope Atomic Mass Half-life Mode of Decay
Nh-283 283 0.147 seconds α to Rg-279
Nh-284 284 0.376-1.196 seconds α to Rg-280

Properties of Nihonium

Name Nihonium
Symbol Nh
Atomic number 113
Atomic weight [284]
Standard state Presumably a solid at 298 °K
CAS Registry ID 54084-70-7
Group in periodic table 13
Group name None
Period in periodic table 7
Block in periodic table p-block
Color Unknown, but probably metallic and silvery white or grey in appearance
Classification Metallic
Melting point 430 °C (predicted)
Boiling point 1130 °C (predicted)
Density of solid 16.00 g/cm3 (predicted)
Electron configuration [Rn]5f146d107s27p1
Heat of vaporization 130 (predicted) kJ·mol-1
Heat of fusion 7.61 (extrapolated) kJ·mol-1
Oxidation states +1, +2, +3, +5 (predicted)