Nihonium-283

Properties and data of the isotope ²⁸³Nh.

Content

General data

Name of the isotope:Nihonium-283; Nh-283Symbol:²⁸³Nh or 283113NhMass number A:283 (= number of nucleons)Atomic number Z:113 (= number of protons)Neutrons N:170Isotopic mass:283.17667(47) u (atomic weight of Nihonium-283)Nuclide mass:283.1146913 u (calculated nuclear mass without electrons)Mass excess:164.56704 MeVMass defect:2.180594336 u (per nucleus)Nuclear binding energy:2031.21054042 MeV (per nucleus)
7.1774224 MeV (average binding energy per nucleon)Separation energy:S_N = 7.237(582) MeV (first neutron)
S_P = 1.552(70) MeV (first proton)Half-life:0.07 sDecay constant λ:9.9021025794278 s^-1Specific activity α:2.107132740030 × 10⁺²² Bq g^-1
569495335143.32 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:2004

Radioactive Decay

Half-life T_½ = 0.07 s respectively 7 × 10^-2 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²⁷⁹Rg	≥ 75 %	10.417(112) MeV
SZ	div	≤ 25 %

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 170) and isobaric (same nucleon number A = 283) with Nihonium-283. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.