Copper-82

Properties and data of the isotope ⁸²Cu.

Contents

General data

Name of the isotope:Copper-82; Cu-82Symbol:⁸²Cu or 8229CuMass number A:82 (= number of nucleons)Atomic number Z:29 (= number of protons)Neutrons N:53Isotopic mass:81.97282(64) u (atomic weight of Copper-82)Nuclide mass:81.9569116 u (calculated nuclear mass without electrons)Mass excess:-25.31801 MeVMass defect:0.71334647600001 u (per nucleus)Nuclear binding energy:664.47796232 MeV (per nucleus)
8.10338978 MeV (average binding energy per nucleon)Separation energy:S_N = 1.97(78) MeV (first neutron)Half-life:33 msDecay constant λ:210.04460016968 s^-1Specific activity α:1.56162736924 × 10⁺²⁴ Bq g^-1
42206145114811 Ci g^-1Spin and parity:
(nuclear angular momentum)Year of discovery:2010

Radioactive Decay

Half-life T_½ = 33 ms respectively 3.3 × 10^-3 seconds s.

Decay mode	Daughter	Probability	Decay energy
β^-	⁸²Zn	100 %	16.99(60) MeV
β^-, n	⁸¹Zn	?	12.81(60) MeV
β^-, 2n	⁸⁰Zn	?

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 53) and isobaric (same nucleon number A = 82) with Copper-82. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 53	Isobar A = 82
29	⁸²Cu	⁸²Cu
30	⁸³Zn	⁸²Zn
31	⁸⁴Ga	⁸²Ga
32	⁸⁵Ge	⁸²Ge
33	⁸⁶As	⁸²As
34	⁸⁷Se	⁸²Se
35	⁸⁸Br	⁸²Br
36	⁸⁹Kr	⁸²Kr
37	⁹⁰Rb	⁸²Rb
38	⁹¹Sr	⁸²Sr
39	⁹²Y	⁸²Y
40	⁹³Zr	⁸²Zr
41	⁹⁴Nb	⁸²Nb
42	⁹⁵Mo	⁸²Mo
43	⁹⁶Tc
44	⁹⁷Ru
45	⁹⁸Rh
46	⁹⁹Pd
47	¹⁰⁰Ag
48	¹⁰¹Cd
49	¹⁰²In
50	¹⁰³Sn
51	¹⁰⁴Sb
52	¹⁰⁵Te