NO. 113Unknown

Nh

Nihonium

Nihonium is a superheavy element named after Japan. Its properties are predicted to resemble those of thallium.

Crystal Structure

Face-centered cubic (predicted)

Atomic Mass286 u

Density16 g/cm³

Melting Point700 K

Boiling Point1430 K

Atomic Radius136 pm

Electronegativity1.8

Ionization Energy700 kJ/mol

Electron Affinity0 kJ/mol

Bonding TypeMetallic

Oxidation States1, 3

Acid/BaseBasic

ReactivityMedium

Electron Configuration

[Rn] 5f14 6d10 7s2 7p1

Discovered ByRIKEN

Year2004

Known Isotopes

Nh-286