Copper-76m

Properties and data of the isotope ^76mCu.

Contents

General data

Name of the isotope:Copper-76m; Cu-76mSymbol:^76mCu or 76m29CuMass number A:76 (= number of nucleons)Atomic number Z:29 (= number of protons)Neutrons N:47Isotopic mass:75.945275(7) u (atomic weight of Copper-76m)
Excitation energy: +y keVNuclide mass:75.9293666 u (calculated nuclear mass without electrons)Mass excess:-50.97601 MeVMass defect:0.68890198000001 u (per nucleus)Nuclear binding energy:641.70806096 MeV (per nucleus)
8.44352712 MeV (average binding energy per nucleon)Half-life:1.27(30) sDecay constant λ:0.54578518154326 s^-1Specific activity α:4.382393656692 × 10⁺²¹ Bq g^-1
118443071802.51 Ci g^-1Spin and parity:
(nuclear angular momentum)

Radioactive Decay

Half-life T_½ = 1.27(30) s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁷⁶Zn	100 %

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
⁷⁶Cu		641(6) ms	3-

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 47) and isobaric (same nucleon number A = 76) with Copper-76m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 47	Isobar A = 76
26	⁷³Fe
27	⁷⁴Co	⁷⁶Co
28	⁷⁵Ni	⁷⁶Ni
29	⁷⁶Cu	⁷⁶Cu
30	⁷⁷Zn	⁷⁶Zn
31	⁷⁸Ga	⁷⁶Ga
32	⁷⁹Ge	⁷⁶Ge
33	⁸⁰As	⁷⁶As
34	⁸¹Se	⁷⁶Se
35	⁸²Br	⁷⁶Br
36	⁸³Kr	⁷⁶Kr
37	⁸⁴Rb	⁷⁶Rb
38	⁸⁵Sr	⁷⁶Sr
39	⁸⁶Y	⁷⁶Y
40	⁸⁷Zr
41	⁸⁸Nb
42	⁸⁹Mo
43	⁹⁰Tc
44	⁹¹Ru
45	⁹²Rh
46	⁹³Pd
47	⁹⁴Ag
48	⁹⁵Cd
49	⁹⁶In