Symbol	Nh
Atomic number	113
Group	13 (Boron group)
Period	7
Block	p
Classification	Unknown

Appearance	-
Color	-

Number of protons	113 p+
Number of neutrons	173 n0
Number of electrons	113 e-

From Wikipedia, the free encyclopediaNihonium is a chemical element with atomic number 113. It has a symbol Nh. It is a synthetic element (an element that can be created in a laboratory but is not found in nature) and is extremely radioactive; its most stable known isotope, nihonium-286, has a half-life of 20 seconds.

Phase at STP	Solid
Density	16 g/cm3
Atomic weight	286 u

Melting point	700 K 426.85 °C 800.33 °F
Boiling point	1430 K 1156.85 °C 2114.33 °F
Heat of vaporization	-

Electronegativity (Pauling Scale)	-
Electron affinity	66.6 kJ/mol
Oxidation states	(−1), (+1), (+3), (+5) (predicted)
Ionization energies	704.9 kJ/mol 2238.5 kJ/mol 3023.3 kJ/mol 4351.5 kJ/mol 5692.6 kJ/mol

Electron configuration Shorthand configuration	[Rn] 5f14 6d10 7s2 7p1
Electron configuration Full configuration	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p1
Electron configuration chart	1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p1
Electrons per shell	2, 8, 18, 32, 32, 18, 3
Valence electrons
Valency electrons
Bohr model	Figure: Shell diagram of Nihonium (Nh) atom.
Orbital Diagram 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f 6s 6p 6d 7s 7p

Discovery

RIKEN (2003)

CAS Number	54084-70-7
ChemSpider ID	-
EC number	-
PubChem CID Number	-