Gold-192
Properties and data of the isotope 192Au.
See also: list of Gold isotopes.
General data
Name of the isotope:Gold-192; Au-192Symbol:192Au or 19279AuMass number A:192 (= number of nucleons)Atomic number Z:79 (= number of protons)Neutrons N:113Isotopic mass:191.964818(17) u (atomic weight of Gold-192)Nuclide mass:191.9214849 u (calculated nuclear mass without electrons)Mass excess:-32.77182 MeVMass defect:1.632495036 u (per nucleus)Nuclear binding energy:1520.65933106 MeV (per nucleus)
7.92010068 MeV (average binding energy per nucleon)Separation energy:SN = 4.046(17) MeV (first neutron)
SP = 4.363(16) MeV (first proton)Half-life:4.94(9) hDecay constant λ:3.897588734592 × 10-5 s-1Specific activity α:1.228891537896 × 10+17 Bq g-1
3321328.4808008 Ci g-1Spin and parity:
(nuclear angular momentum)1-Magnetic dipole moment:μ(μN) = - 0.0107(15)Quadrupole moment Q:- 0.228(8) barn (100 fm2)Nuclear g-factor:gl = -0.0107Charge radius:5.4179(44) femtometer fmYear of discovery:1948
Radioactive Decay
Half-life T½ = 4.94(9) h (hours) respectively 1.7784 × 104 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
EE/β+ | 192Pt | 100 % | 3.516(16) MeV | |
Parent Nuclides
Direct parent isotope is: 192Hg.
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
192m1Au | 135.41(25) keV | 29 ms | (5)+ |
192m2Au | 431.6(5) keV | 160(20) ms | (11-) |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 113) and isobaric (same nucleon number A = 192) with Gold-192. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 113 | Isobar A = 192 |
70 | 183Yb | |
71 | 184Lu | |
72 | 185Hf | |
73 | 186Ta | 192Ta |
74 | 187W | 192W |
75 | 188Re | 192Re |
76 | 189Os | 192Os |
77 | 190Ir | 192Ir |
78 | 191Pt | 192Pt |
79 | 192Au | 192Au |
80 | 193Hg | 192Hg |
81 | 194Tl | 192Tl |
82 | 195Pb | 192Pb |
83 | 196Bi | 192Bi |
84 | 197Po | 192Po |
85 | 198At | 192At |
86 | 199Rn | |
87 | 200Fr | |
88 | 201Ra | |
External data and identifiers
Last update: 2020-10-22
Perma link: https://www.chemlin.org/isotope/gold-192
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