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Cobalt-63

Properties and data of the isotope 63Co.


Content

See also: list of Cobalt isotopes.

 

General data

Name of the isotope:Cobalt-63; Co-63Symbol:63Co or 6327CoMass number A:63 (= number of nucleons)Atomic number Z:27 (= number of protons)Neutrons N:36Isotopic mass:62.93360(20) u (atomic weight of Cobalt-63)Nuclide mass:62.9187887 u (calculated nuclear mass without electrons)Mass excess:-61.8512 MeVMass defect:0.58961284 u (per nucleus)Nuclear binding energy:549.22082278 MeV (per nucleus)
8.71779084 MeV (average binding energy per nucleon)
Separation energy:SN = 8.498(26) MeV (first neutron)
SP = 10.262(19) MeV (first proton)
Half-life:27.4(5) sDecay constant λ:0.025297342356202 s-1Specific activity α:2.457163855662 × 10+20 Bq g-1
6640983393.6832 Ci g-1
Spin and parity:
(nuclear angular momentum)
7/2-Year of discovery:1960

 

Radioactive Decay

Half-life T½ = 27.4(5) s respectively 2.74 × 101 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
β-63Ni100 %3.661(19) MeV

 

Parent Nuclides

Direct parent isotope is: 63Fe.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 36) and isobaric (same nucleon number A = 63) with Cobalt-63. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 36Isobar A = 63
1955K
2056Ca
2157Sc
2258Ti63Ti
2359V63V
2460Cr63Cr
2561Mn63Mn
2662Fe63Fe
2763Co63Co
2864Ni63Ni
2965Cu63Cu
3066Zn63Zn
3167Ga63Ga
3268Ge63Ge
3369As63As
3470Se63Se
3571Br
3672Kr
3773Rb
3874Sr

 

External data and identifiers

Adopted Levels, Gammas:NuDat 63Co

 


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Last update: 2020-10-14


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