Zinc-79

Properties and data of the isotope ⁷⁹Zn.

Contents

General data

Name of the isotope:Zinc-79; Zn-79Symbol:⁷⁹Zn or 7930ZnMass number A:79 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:49Isotopic mass:78.9426381(24) u (atomic weight of Zinc-79)Nuclide mass:78.9261812 u (calculated nuclear mass without electrons)Mass excess:-53.43227 MeVMass defect:0.71669374400001 u (per nucleus)Nuclear binding energy:667.59592237 MeV (per nucleus)
8.4505813 MeV (average binding energy per nucleon)Separation energy:S_N = 4.0204(29) MeV (first neutron)
S_P = 16.22(50) MeV (first proton)Half-life:746(42) msDecay constant λ:0.92915171656829 s^-1Specific activity α:7.173695535161 × 10⁺²¹ Bq g^-1
193883663112.48 Ci g^-1Spin and parity:
(nuclear angular momentum)9/2+Magnetic dipole moment:μ(μ_N) = -1.1866(10)Quadrupole moment Q:+0.487 barn (100 fm²)Nuclear g-factor:g_l = -0.26368888888889Year of discovery:1981

Radioactive Decay

Half-life T_½ = 746(42) ms respectively 7.46 × 10^-1 seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁷⁹Ga	98.3 %	9.1154(29) MeV
β^-, n	⁷⁸Ga	1.7(5) %	2.2023(29) MeV

Parent Nuclides

Direct parent isotope is: ⁷⁹Cu.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 49) and isobaric (same nucleon number A = 79) with Zinc-79. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 49	Isobar A = 79
27	⁷⁶Co
28	⁷⁷Ni	⁷⁹Ni
29	⁷⁸Cu	⁷⁹Cu
30	⁷⁹Zn	⁷⁹Zn
31	⁸⁰Ga	⁷⁹Ga
32	⁸¹Ge	⁷⁹Ge
33	⁸²As	⁷⁹As
34	⁸³Se	⁷⁹Se
35	⁸⁴Br	⁷⁹Br
36	⁸⁵Kr	⁷⁹Kr
37	⁸⁶Rb	⁷⁹Rb
38	⁸⁷Sr	⁷⁹Sr
39	⁸⁸Y	⁷⁹Y
40	⁸⁹Zr	⁷⁹Zr
41	⁹⁰Nb
42	⁹¹Mo
43	⁹²Tc
44	⁹³Ru
45	⁹⁴Rh
46	⁹⁵Pd
47	⁹⁶Ag
48	⁹⁷Cd
49	⁹⁸In
50	⁹⁹Sn