Nihonium (Nh)

Nihonium is the 113th element in the periodic table and has a symbol of Nh and atomic number of 113. It has an atomic weight of (286) and a mass number of 278. Nihonium has one hundred thirteen protons and one hundred sixty-five neutrons in its nucleus, and one hundred thirteen electrons in seven shells. It is located in group thirteen, period seven and block p of the periodic table.

Atomic Number	113
Atomic Weight	286
Mass Number	278

Group	13
Period	7
Block	p

Protons	113 p⁺
Neutrons	165 n⁰
Electrons	113 e^-

Properties

Physical Properties
Atomic Radius
Molar Volume
Covalent Radius	136 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius
Density	16 g/cm³
Energy
Proton Affinity
Electron Affinity
Ionization Energy
Heat of Vaporization
Heat of Fusion
Heat of Formation
Electrons
Electron Shells	2, 8, 18, 32, 32, 18, 3

Valence Electrons	3

Electron Configuration	[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹

Oxidation States
Electronegativity
Electrophilicity
Phases
Phase	Solid
Gas Phase
Boiling Point
Melting Point
Critical Pressure
Critical Temperature
Triple Point
Visual
Nihonium is a Colorless.
Color	Colorless
Appearance
Refractive Index
Thermodynamic Properties
Thermal Conductivity
Thermal Expansion
Molar Heat Capacity
Specific Heat Capacity
Heat Capacity Ratio (Adiabatic Index)
Electrical Properties
Type
Electrical Conductivity
Electrical Resistivity
Superconducting Point
Magnetism
Type
Magnetic Susceptibility (Mass)
Magnetic Susceptibility (Molar)
Magnetic Susceptibility (Volume)
Magnetic Ordering
Curie Point
Neel Point
Structure
The lattice angles of Nihonium is .
Crystal Structure	()
Lattice Constant
Lattice Angles
Mechanical Properties

Hardness
Bulk Modulus
Shear Modulus
Young Modulus
Poisson Ratio
Speed of Sound
Classification
The CAS Group of Nihonium is IIIB. The IUPAC Group of Nh is IIIA. The Mendeleev Number of Element 113 is 86. The Goldschmidt Class of Nihonium (Nh) is synthetic.
Category	Post-transition metals, Poor metals
CAS Group	IIIB
IUPAC Group	IIIA
Glawe Number
Mendeleev Number	86
Pettifor Number
Geochemical Class
Goldschmidt Class	synthetic
Other
The Dipole Polarizability of Nihonium is 29 plus or minus 2 a₀. The Allotropes of Nh is . The Quantum Numbers of Element 113 is 2P1/2. The Space Group of Nihonium (Nh) is ().
Gas Basicity
Dipole Polarizability	29 ± 2 a₀
C6 Dispersion Coefficient
Allotropes
Neutron Cross Section
Neutron Mass Absorption
Quantum Numbers	2P1/2
Space Group	()

Isotopes of Nihonium

Stable Isotopes	0
Unstable Isotopes	13
Radioactive Isotopes	13

²⁷⁸Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	278.170725 ± 0.00024 Da
Mass Number	278
G-Factor
Half Life	2.3 ± 1.3 ms
Spin
Quadrupole Moment
Discovery Year	2004
Parity

²⁷⁸Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁷⁹Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	279.171187 ± 0.000644 Da
Mass Number	279
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁷⁹Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁸⁰Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	280.173098 ± 0.000429 Da
Mass Number	280
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁸⁰Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁸¹Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	281.17371 ± 0.000322 Da
Mass Number	281
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁸¹Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁸²Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	282.17577 ± 0.00043 Da
Mass Number	282
G-Factor
Half Life	140 ± 90 ms
Spin
Quadrupole Moment
Discovery Year	2007
Parity

²⁸²Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁸³Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	283.176666 ± 0.000469 Da
Mass Number	283
G-Factor
Half Life	140 ± 90 ms
Spin
Quadrupole Moment
Discovery Year	2004
Parity

²⁸³Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁸⁴Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	284.178843 ± 0.000573 Da
Mass Number	284
G-Factor
Half Life	0.97 ± 0.11 s
Spin
Quadrupole Moment
Discovery Year	2004
Parity

²⁸⁴Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁸⁵Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	285.180106 ± 0.000832 Da
Mass Number	285
G-Factor
Half Life	4.6 ± 1.1 s
Spin
Quadrupole Moment
Discovery Year	2010
Parity

²⁸⁵Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁸⁶Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	286.182456 ± 0.000634 Da
Mass Number	286
G-Factor
Half Life	12 ± 5 s
Spin
Quadrupole Moment
Discovery Year	2010
Parity

²⁸⁶Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%

²⁸⁷Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	287.184064 ± 0.000759 Da
Mass Number	287
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁸⁷Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁸⁸Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	288.186764 ± 0.000751 Da
Mass Number	288
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁸⁸Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁸⁹Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	289.188461 ± 0.000537 Da
Mass Number	289
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

²⁸⁹Nh Decay Modes

Decay Mode	Intensity
α (α emission)	%
SF (spontaneous fission)	%

²⁹⁰Nh

Abundance	Radioactive ☢️
Relative Atomic Mass	290.191429 ± 0.000503 Da
Mass Number	290
G-Factor
Half Life	8 ± 6 s
Spin
Quadrupole Moment
Discovery Year	2016
Parity

²⁹⁰Nh Decay Modes

Decay Mode	Intensity
α (α emission)	100%
SF (spontaneous fission)	50%

History

Nihonium was identified in 2003 as an alpha decay product of element 115, moscovium by a team composed of Russian scientists at Joint Institute for Nuclear Research, Dubna and American scientists at the Lawrence Livermore National Laboratory. The Dubna-Livermore collaboration has strengthened their claim for the discovery of nihonium by conducting chemical experiments on the final decay product ²⁶⁸Db. The name comes from the common Japanese name for Japan

Discoverers	RIKEN
Discovery Location	Japan
Discovery Year	2015
Etymology (Name Origin)	Named after the country of Japan.
Pronunciation

Nihonium is harmful due to its radioactivity

Nihonium is historically known as eka-thallium

Uses

Nihonium is used for scientific research purposes only.

Sources

Made by bombardng bismuth-209 with zinc-70.

Abundance
Abundance in Earth's crust
Abundance in Oceans
Abundance in Human Body	0 %
Abundance in Meteor	0 %
Abundance in Sun	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Nihonium on ChemicalAid

Australian Educational Vocabulary ID	scot/15537
CAS Registry Number	54084-70-7
Den Store Danske ID	nihonium
Encyclopædia Britannica Online ID	science/element-113
Freebase ID	/m/026bqpv
Gran Enciclopèdia Catalana ID	0282548
Great Russian Encyclopedia Online ID	4854441
KBpedia ID	Nihonium
Library of Congress authority ID	sh2012003544
NE.se ID	nihonium
NE.se ID	ununtrium
National Library of Israel J9U ID	987007593035105171
OmegaWiki Defined Meaning	708212
Quora topic ID	Ununtrium
Store norske leksikon ID	ununtrium
USGS Thesaurus ID	1603

Nihonium (Nh)

Properties

Isotopes of Nihonium

278Nh

278Nh Decay Modes

279Nh

279Nh Decay Modes

280Nh

280Nh Decay Modes

281Nh

281Nh Decay Modes

282Nh

282Nh Decay Modes

283Nh

283Nh Decay Modes

284Nh

284Nh Decay Modes

285Nh

285Nh Decay Modes

286Nh

286Nh Decay Modes

287Nh

287Nh Decay Modes

288Nh

288Nh Decay Modes

289Nh

289Nh Decay Modes

290Nh

290Nh Decay Modes