Copper-64

Properties and data of the isotope ⁶⁴Cu.

Content

General Data

Radioactive Decay

Parent Nuclides

Isotones und Isobares

Literature

General data

Name of the isotope:Copper-64; Cu-64Symbol:⁶⁴Cu or 6429CuMass number A:64 (= number of nucleons)Atomic number Z:29 (= number of protons)Neutrons N:35Isotopic mass:63.9297640(5) u (atomic weight of Copper-64)Nuclide mass:63.9138556 u (calculated nuclear mass without electrons)Mass excess:-65.42441 MeVMass defect:0.600433988 u (per nucleus)Nuclear binding energy:559.30065722 MeV (per nucleus)
8.73907277 MeV (average binding energy per nucleon)Separation energy:S_N = 7.915868(24) MeV (first neutron)
S_P = 7.200498(28) MeV (first proton)Half-life:12.7006(20) hDecay constant λ:1.515998326763 × 10^-5 s^-1Specific activity α:1.449135788443 × 10⁺¹⁷ Bq g^-1
3916583.2120103 Ci g^-1Spin and parity:
(nuclear angular momentum)1+Magnetic dipole moment:μ(μ_N) = -0.2166(4)Quadrupole moment Q:0.075(9) barn (100 fm²)Nuclear g-factor:g_l = -0.2166Year of discovery:1936

Radioactive Decay

Half-life T_½ = 12.7006(20) h (hours) respectively 4.572216 × 10⁴ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
β^-	⁶⁴Zn	38.5(3) %	0.5796(6) MeV	1.34577(6) MeV 0.472(4) %
EE/β⁺	⁶⁴Ni	61.5(3) %	1.6746(6) MeV

Parent Nuclides

Direct parent isotopes are: ⁶⁴Zn, ⁶⁴Ni.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 35) and isobaric (same nucleon number A = 64) with Copper-64. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 35	Isobar A = 64
18	⁵³Ar
19	⁵⁴K
20	⁵⁵Ca
21	⁵⁶Sc
22	⁵⁷Ti
23	⁵⁸V	⁶⁴V
24	⁵⁹Cr	⁶⁴Cr
25	⁶⁰Mn	⁶⁴Mn
26	⁶¹Fe	⁶⁴Fe
27	⁶²Co	⁶⁴Co
28	⁶³Ni	⁶⁴Ni
29	⁶⁴Cu	⁶⁴Cu
30	⁶⁵Zn	⁶⁴Zn
31	⁶⁶Ga	⁶⁴Ga
32	⁶⁷Ge	⁶⁴Ge
33	⁶⁸As	⁶⁴As
34	⁶⁹Se	⁶⁴Se
35	⁷⁰Br
36	⁷¹Kr
37	⁷²Rb
38	⁷³Sr