Nihonium

Nihonium (Nh)

Atomic Number113
Atomic Weight286
Mass Number278
Group13
Period7
Blockp
Protons113 p+
Neutrons165 n0
Electrons113 e-
Electron shell 113 Nihonium.svg Animated Bohr Model of Nh (Nihonium) Enhanced Bohr Model of Nh (Nihonium) Bohr Model: Nh (Nihonium) Orbital Diagram of Nh (Nihonium)

Properties

Atomic Radius
Molar Volume
Covalent Radius
136 pm
Metallic Radius
Ionic Radius
Crystal Radius
Van der Waals Radius
Density
Energy
Proton Affinity
Electron Affinity
Ionization Energy
Heat of Vaporization
Heat of Fusion
Heat of Formation
Electrons
Electron Shells2, 8, 18, 32, 32, 18, 3
Valence Electrons0
Electron Configuration[Rn] 5f14 6d10 7s2 7p1
Oxidation States
Electronegativity
Electrophilicity
Phases
PhaseSolid
Gas Phase
Boiling Point
Melting Point
Critical Pressure
Critical Temperature
Triple Point
Visual
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
Crystal Structure ()
Lattice Constant
Lattice Angles
Mechanical Properties
Hardness
Bulk Modulus
Shear Modulus
Young Modulus
Poisson Ratio
Speed of Sound
Classification
CategoryPost-transition metals, Poor metals
CAS GroupIIIB
IUPAC GroupIIIA
Glawe Number
Mendeleev Number86
Pettifor Number
Geochemical Class
Goldschmidt Classsynthetic
Other
Gas Basicity
Dipole Polarizability
29 ± 2 a₀
C6 Dispersion Coefficient
Allotropes
Neutron Cross Section
Neutron Mass Absorption
Quantum Numbers2P1/2
Space Group ()

Isotopes of Nihonium

Stable Isotopes0
Unstable Isotopes13
Radioactive Isotopes13

278Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
278.170725 ± 0.00024 Da
Mass Number278
G-Factor
Half Life
2.3 ± 1.3 ms
Spin
Quadrupole Moment
Discovery Year2004
Parity

278Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

279Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
279.171187 ± 0.000644 Da
Mass Number279
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

279Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

280Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
280.173098 ± 0.000429 Da
Mass Number280
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

280Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

281Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
281.17371 ± 0.000322 Da
Mass Number281
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

281Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

282Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
282.17577 ± 0.00043 Da
Mass Number282
G-Factor
Half Life
140 ± 90 ms
Spin
Quadrupole Moment
Discovery Year2007
Parity

282Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

283Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
283.176666 ± 0.000469 Da
Mass Number283
G-Factor
Half Life
140 ± 90 ms
Spin
Quadrupole Moment
Discovery Year2004
Parity

283Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

284Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
284.178843 ± 0.000573 Da
Mass Number284
G-Factor
Half Life
0.97 ± 0.11 s
Spin
Quadrupole Moment
Discovery Year2004
Parity

284Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

285Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
285.180106 ± 0.000832 Da
Mass Number285
G-Factor
Half Life
4.6 ± 1.1 s
Spin
Quadrupole Moment
Discovery Year2010
Parity

285Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

286Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
286.182456 ± 0.000634 Da
Mass Number286
G-Factor
Half Life
12 ± 5 s
Spin
Quadrupole Moment
Discovery Year2010
Parity

286Nh Decay Modes
Decay ModeIntensity
α (α emission)100%

287Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
287.184064 ± 0.000759 Da
Mass Number287
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

287Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

288Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
288.186764 ± 0.000751 Da
Mass Number288
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

288Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

289Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
289.188461 ± 0.000537 Da
Mass Number289
G-Factor
Half Life
Spin
Quadrupole Moment
Discovery Year
Parity

289Nh Decay Modes
Decay ModeIntensity
α (α emission)%
SF (spontaneous fission)%

290Nh

AbundanceRadioactive ☢️
Relative Atomic Mass
290.191429 ± 0.000503 Da
Mass Number290
G-Factor
Half Life
8 ± 6 s
Spin
Quadrupole Moment
Discovery Year2016
Parity

290Nh Decay Modes
Decay ModeIntensity
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

DiscoverersRIKEN
Discovery LocationJapan
Discovery Year2015
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