Zinc-75

Properties and data of the isotope ⁷⁵Zn.

Contents

General data

Name of the isotope:Zinc-75; Zn-75Symbol:⁷⁵Zn or 7530ZnMass number A:75 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:45Isotopic mass:74.9328402(21) u (atomic weight of Zinc-75)Nuclide mass:74.9163833 u (calculated nuclear mass without electrons)Mass excess:-62.55895 MeVMass defect:0.69183198 u (per nucleus)Nuclear binding energy:644.43733838 MeV (per nucleus)
8.59249785 MeV (average binding energy per nucleon)Separation energy:S_N = 4.874(3) MeV (first neutron)
S_P = 13.842(6) MeV (first proton)Half-life:10.2(2) sDecay constant λ:0.06795560593725 s^-1Specific activity α:5.530246367249 × 10⁺²⁰ Bq g^-1
14946611803.377 Ci g^-1Spin and parity:
(nuclear angular momentum)(7/2+)Magnetic dipole moment:μ(μ_N) = -0.7881(9)Nuclear g-factor:g_l = -0.22517142857143Year of discovery:1974

Radioactive Decay

Half-life T_½ = 10.2(2) s respectively 1.02 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁷⁵Ga	100 %	5.906(3) MeV

Parent Nuclides

Direct parent isotope is: ⁷⁶Cu.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 45) and isobaric (same nucleon number A = 75) with Zinc-75. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 45	Isobar A = 75
25	⁷⁰Mn
26	⁷¹Fe
27	⁷²Co	⁷⁵Co
28	⁷³Ni	⁷⁵Ni
29	⁷⁴Cu	⁷⁵Cu
30	⁷⁵Zn	⁷⁵Zn
31	⁷⁶Ga	⁷⁵Ga
32	⁷⁷Ge	⁷⁵Ge
33	⁷⁸As	⁷⁵As
34	⁷⁹Se	⁷⁵Se
35	⁸⁰Br	⁷⁵Br
36	⁸¹Kr	⁷⁵Kr
37	⁸²Rb	⁷⁵Rb
38	⁸³Sr	⁷⁵Sr
39	⁸⁴Y
40	⁸⁵Zr
41	⁸⁶Nb
42	⁸⁷Mo
43	⁸⁸Tc
44	⁸⁹Ru
45	⁹⁰Rh
46	⁹¹Pd
47	⁹²Ag