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Isotopes of Nihonium

List, data and properties of all known isotopes of Nihonium as well as radioactive decay products and intermediate products.

 

Nihonium isotopes

 

Isotope Table: Nihonium

 

Atomic Properties

Isotope
Nuclide
ZANNameAtomic Mass
[Nuclear Mass]
{Mass Excess}
Spin I
(h/2π)
μParent
123456789
278Nh113278165Nihonium-278278.17058(20) u
[278.1086013 u]
{158.89425 MeV}
279Nh113279166Nihonium-279
280Nh113280167Nihonium-280
281Nh113281168Nihonium-281
282Nh113282169Nihonium-282282.17567(39) u
[282.1136913 u]
{163.63555 MeV}
283Nh113283170Nihonium-283283.17657(52) u
[283.1145913 u]
{164.4739 MeV}
284Nh113284171Nihonium-284284.17873(62) u
[284.1167513 u]
{166.48592 MeV}
285Nh113285172Nihonium-285285.17973(89) u
[285.1177513 u]
{167.41742 MeV}
286Nh113286173Nihonium-286286.18221(72) u
[286.1202313 u]
{169.72752 MeV}

 

Radioactive Decay Properties

IsotopeRadioactive DecayAEExtern
Half-lifeDecay ModeProbabilityEnergy
1101112131415
Nh-2781.4sα 274RgAL
Nh-279AL
Nh-280AL
Nh-281AL
Nh-2820.07 sα 278Rg
SF


AL
Nh-2830.075 sα 279RgAL
Nh-2840.97 sα 280RgAL
Nh-2855.5 sα 281Rg
SF


Nh-2869.5 sα 282Rg
SF


AL

 

Notes (related to the columns):

1 - nuclide, isotope symbol.
2 - Z = number of protons (atomic number).
3 - Mass number A.
4 - N = number of neutrons.
5 - Identification of the Nihonium isotope.
6 - Relative atomic mass of the Nihonium isotope (isotopic mass including electrons) and the mass of the atomic nucleus in square brackets (nuclear mass, nuclide mass without electrons), each related to 12C = 12.00000 [2]. In addition, the mass excess is given in MeV.
7 - Nuclear spin I, unit: h/2π.
8 - Nuclear magnetic moment μmag.
9 - Source nuclides: Possible, assumed or actual source nuclides (mother nuclides, parent nuclides). If applicable, the corresponding decay modes can be found in the data for the respective starting nuclide.
10 - Decay: Half-live of the Nihonium isotope (a = years; ; d = days; h = hours; min = minutes; s = seconds).
11 - Decay: type of decay into the respective daughter nuclides with n = neutron emission; p = proton emission; α = alpha decay; β- = beta minus decay with electron emission; EC = electron capture; β+ = positron emission; ε = β+ and/or EC; Iso = isomeric transition; CD = cluster decay; SF = spontaneous decay.
12 - Decay percentage in percent (%).
13 - Decay energy; Particle energy related to decay type.
14 - AE = Excitation energy for metastable nuclei.
15 - Other information and notes: AL = Adopted Levels (link to external data [1]).

Miscellaneous:

()- Numbers in brackets: uncertainty to represent the spread of the reported value.
~ - Theoretical values or systematic trends.
  - unlisted-: Nuclides that have already been mentioned in the literature but for some reason can no longer be found in the current nuclide tables because their discovery e.g. has not confirmed.

 

Literature Sources and References

Properties of the Nihonium nucleides

[1] - NuDat: National Nuclear Data Center, Brookhaven National Laboratory, based on ENSDF and the Nuclear Wallet Cards.

[2] - G. Audi et. al.: The NUBASE evaluation of nuclear and decay properties. Nuclear Physics, (2003), DOI 10.1016/j.nuclphysa.2003.11.001.

[3] - Live Chart of Nuclides. Nuclear structure and decay data.

Nihonium: NMR properties

[4] - N. J. Stone: Table of nuclear magnetic dipole and electric quadrupole moments. Atomic Data and Nuclear Data Tables, (2005), DOI 10.1016/j.adt.2005.04.001.

[5] - Pekka Pyykkö: Year-2008 nuclear quadrupole moments. Molecular Physics, (2008), DOI 10.1080/00268970802018367.

[6] - Pekka Pyykkö: Year-2017 nuclear quadrupole moments. Molecular Physics, (2018), DOI 10.1080/00268976.2018.1426131.

[7] - N. J. Stone: Table of recommended nuclear magnetic dipole moments. IAEA, (2019).

More sources:

[8] - Isotopic abundances, atomic weights and isotopic masses: see respective keyword.

 


Category: Isotopes

Last update: 05.07.2020



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