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Cobalt-76

Properties and data of the isotope 76Co.


Content

See also: list of Cobalt isotopes.

 

General data

Name of the isotope:Cobalt-76; Co-76Symbol:76Co or 7627CoMass number A:76 (= number of nucleons)Atomic number Z:27 (= number of protons)Neutrons N:49Isotopic mass:75.97369(64) u (atomic weight of Cobalt-76)Nuclide mass:75.9588787 u (calculated nuclear mass without electrons)Mass excess:-24.50761 MeVMass defect:0.66216674799999 u (per nucleus)Nuclear binding energy:616.80435276 MeV (per nucleus)
8.11584675 MeV (average binding energy per nucleon)
Separation energy:SN = 2.93(78) MeV (first neutron)
SP = 18.16(85) MeV (first proton)
Half-life:21.7 msDecay constant λ:31.942266385251 s-1Specific activity α:2.564811034101 × 10+23 Bq g-1
6931921713787.6 Ci g-1
Spin and parity:
(nuclear angular momentum)
Year of discovery:2010

 

Radioactive Decay

Half-life T½ = 21.7 ms respectively 2.17 × 10-2 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
β-76Ni17.12(72) MeV
β-, n75Ni?11.45(67) MeV
β-, 2n74Ni?

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 49) and isobaric (same nucleon number A = 76) with Cobalt-76. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 49Isobar A = 76
2776Co76Co
2877Ni76Ni
2978Cu76Cu
3079Zn76Zn
3180Ga76Ga
3281Ge76Ge
3382As76As
3483Se76Se
3584Br76Br
3685Kr76Kr
3786Rb76Rb
3887Sr76Sr
3988Y76Y
4089Zr
4190Nb
4291Mo
4392Tc
4493Ru
4594Rh
4695Pd
4796Ag
4897Cd
4998In
5099Sn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 76Co

 


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Last update: 2020-10-14


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