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Chlorine-32

Properties and data of the isotope 32Cl.


Content

See also: list of Chlorine isotopes.

 

General data

Name of the isotope:Chlorine-32; Cl-32Symbol:32Cl or 3217ClMass number A:32 (= number of nucleons)Atomic number Z:17 (= number of protons)Neutrons N:15Isotopic mass:31.9856846(6) u (atomic weight of Chlorine-32)Nuclide mass:31.9763589 u (calculated nuclear mass without electrons)Mass excess:-13.33471 MeVMass defect:0.277314684 u (per nucleus)Nuclear binding energy:258.31696426 MeV (per nucleus)
8.07240513 MeV (average binding energy per nucleon)
Separation energy:SN = 14.371(3) MeV (first neutron)
SP = 1.5811(5) MeV (first proton)
Half-life:298(1) msDecay constant λ:2.3259972502012 s-1Specific activity α:4.518542929205 × 10+22 Bq g-1
1221227818704.2 Ci g-1
Spin and parity:
(nuclear angular momentum)
1+Magnetic dipole moment:μ(μN) = 1.115(6)Nuclear g-factor:gl = 1.115Mirror nucleus:Phosphorus-32Year of discovery:1953

 

Radioactive Decay

Half-life T½ = 298(1) ms respectively 2.98 × 10-1 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
EE/β+32S99.92 %12.6804 MeV
ε, p31P0.26 %3.822 MeV
EE, α28Si0.054 %5,738 MeV

 

Parent Nuclides

Direct parent isotope is: 32Ar.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 15) and isobaric (same nucleon number A = 32) with Chlorine-32. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 15Isobar A = 32
520B
621C
722N
823O
924F
1025Ne32Ne
1126Na32Na
1227Mg32Mg
1328Al32Al
1429Si32Si
1530P32P
1631S32S
1732Cl32Cl
1833Ar32Ar
1934K32K
2035Ca
2136Sc

 

External data and identifiers

Adopted Levels, Gammas:NuDat 32Cl

 


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Last update: 2023-10-04


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