Zinc-62

Properties and data of the isotope ⁶²Zn.

Content

General data

Name of the isotope:Zinc-62; Zn-62Symbol:⁶²Zn or 6230ZnMass number A:62 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:32Isotopic mass:61.9343335(7) u (atomic weight of Zinc-62)Nuclide mass:61.9178766 u (calculated nuclear mass without electrons)Mass excess:-61.16795 MeVMass defect:0.577694772 u (per nucleus)Nuclear binding energy:538.11921395 MeV (per nucleus)
8.67934216 MeV (average binding energy per nucleon)Separation energy:S_N = 12.890(16) MeV (first neutron)
S_P = 6.4729(10) MeV (first proton)Half-life:9.193(15) hDecay constant λ:2.094429277590 × 10^-5 s^-1Specific activity α:2.067696414889 × 10⁺¹⁷ Bq g^-1
5588368.6888897 Ci g^-1Spin and parity:
(nuclear angular momentum)0+Mirror nucleus:Germanium-62Year of discovery:1948

Radioactive Decay

Half-life T_½ = 9.193(15) h (hours) respectively 3.30948 × 10⁴ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	⁶²Cu	100 %	1.6195(9) MeV

Parent Nuclides

Direct parent isotope is: ⁶²Ga.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 32) and isobaric (same nucleon number A = 62) with Zinc-62. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 32	Isobar A = 62
16	⁴⁸S
17	⁴⁹Cl
18	⁵⁰Ar
19	⁵¹K
20	⁵²Ca
21	⁵³Sc
22	⁵⁴Ti	⁶²Ti
23	⁵⁵V	⁶²V
24	⁵⁶Cr	⁶²Cr
25	⁵⁷Mn	⁶²Mn
26	⁵⁸Fe	⁶²Fe
27	⁵⁹Co	⁶²Co
28	⁶⁰Ni	⁶²Ni
29	⁶¹Cu	⁶²Cu
30	⁶²Zn	⁶²Zn
31	⁶³Ga	⁶²Ga
32	⁶⁴Ge	⁶²Ge
33	⁶⁵As	⁶²As
34	⁶⁶Se
35	⁶⁷Br
36	⁶⁸Kr