Gold-182
Properties and data of the isotope 182Au.
See also: list of Gold isotopes.
General data
Name of the isotope:Gold-182; Au-182Symbol:182Au or 18279AuMass number A:182 (= number of nucleons)Atomic number Z:79 (= number of protons)Neutrons N:103Isotopic mass:181.969618(22) u (atomic weight of Gold-182)Nuclide mass:181.9262849 u (calculated nuclear mass without electrons)Mass excess:-28.30065 MeVMass defect:1.541045876 u (per nucleus)Nuclear binding energy:1435.47498722 MeV (per nucleus)
7.8872252 MeV (average binding energy per nucleon)Separation energy:SN = 8.501(28) MeV (first neutron)
SP = 1.208(24) MeV (first proton)Half-life:15.5(4) sDecay constant λ:0.044719172939351 s-1Specific activity α:1.48787380431 × 10+20 Bq g-1
4021280552.1973 Ci g-1Spin and parity:
(nuclear angular momentum)(2+)Magnetic dipole moment:μ(μN) = 1.30(10)Nuclear g-factor:gl = 0.65Year of discovery:1970
Radioactive Decay
Half-life T½ = 15.5(4) s respectively 1.55 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
α | 178Ir | 0.13(5) % | 5.526(4) MeV | |
EE/β+ | 182Pt | 99.87(5) % | 7.868(24) MeV | |
Parent Nuclides
Direct parent isotope is: 182Hg.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 103) and isobaric (same nucleon number A = 182) with Gold-182. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 103 | Isobar A = 182 |
60 | 163Nd | |
62 | 165Sm | |
63 | 166Eu | |
64 | 167Gd | |
65 | 168Tb | |
66 | 169Dy | |
67 | 170Ho | |
68 | 171Er | |
69 | 172Tm | |
70 | 173Yb | 182Yb |
71 | 174Lu | 182Lu |
72 | 175Hf | 182Hf |
73 | 176Ta | 182Ta |
74 | 177W | 182W |
75 | 178Re | 182Re |
76 | 179Os | 182Os |
77 | 180Ir | 182Ir |
78 | 181Pt | 182Pt |
79 | 182Au | 182Au |
80 | 183Hg | 182Hg |
81 | 184Tl | 182Tl |
82 | 185Pb | 182Pb |
83 | 186Bi | |
84 | 187Po | |
External data and identifiers
Last update: 2020-10-22
Perma link: https://www.chemlin.org/isotope/gold-182
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