Nihonium-282

Properties and data of the isotope ²⁸²Nh.

Contents

General data

Name of the isotope:Nihonium-282; Nh-282Symbol:²⁸²Nh or 282113NhMass number A:282 (= number of nucleons)Atomic number Z:113 (= number of protons)Neutrons N:169Isotopic mass:282.17577(43) u (atomic weight of Nihonium-282)Nuclide mass:282.1137913 u (calculated nuclear mass without electrons)Mass excess:163.7287 MeVMass defect:2.17282942 u (per nucleus)Nuclear binding energy:2023.97756775 MeV (per nucleus)
7.17722542 MeV (average binding energy per nucleon)Separation energy:S_N = 6.153(500) MeV (first neutron)
S_P = 1.507(564) MeV (first proton)Half-life:0.07(9) sDecay constant λ:9.9021025794278 s^-1Specific activity α:2.114604841945 × 10⁺²² Bq g^-1
571514822147.38 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:2007

Radioactive Decay

Half-life T_½ = 0.07(9) s respectively 7 × 10^-2 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
α	²⁷⁸Rg	100 %	10.783(95) MeV
SF		?

Parent Nuclides

Direct parent isotope is: ²⁸⁶Mc.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 169) and isobaric (same nucleon number A = 282) with Nihonium-282. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.