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Chlorine-41

Properties and data of the isotope 41Cl.


Contents

See also: list of Chlorine isotopes.

 

General data

Name of the isotope:Chlorine-41; Cl-41Symbol:41Cl or 4117ClMass number A:41 (= number of nucleons)Atomic number Z:17 (= number of protons)Neutrons N:24Isotopic mass:40.97068(7) u (atomic weight of Chlorine-41)Nuclide mass:40.9613543 u (calculated nuclear mass without electrons)Mass excess:-27.3114 MeVMass defect:0.370303528 u (per nucleus)Nuclear binding energy:344.93551451 MeV (per nucleus)
8.41306133 MeV (average binding energy per nucleon)
Separation energy:SN = 7.821(76) MeV (first neutron)
SP = 11.758(69) MeV (first proton)
Half-life:38.4(8) sDecay constant λ:0.018050707827082 s-1Specific activity α:2.717597628906 × 10+20 Bq g-1
7344858456.5032 Ci g-1
Spin and parity:
(nuclear angular momentum)
(1/2+)Mirror nucleus:Chromium-41Year of discovery:1971

 

Radioactive Decay

Half-life T½ = 38.4(8) s respectively 3.84 × 101 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
β-41Ar100 %5.76031 MeV

 

Parent Nuclides

Direct parent isotopes are: 41S, 42S.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 24) and isobaric (same nucleon number A = 41) with Chlorine-41. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

ZIsotone N = 24Isobar A = 41
1034Ne
1135Na
1236Mg
1337Al41Al
1438Si41Si
1539P41P
1640S41S
1741Cl41Cl
1842Ar41Ar
1943K41K
2044Ca41Ca
2145Sc41Sc
2246Ti41Ti
2347V41V
2448Cr41Cr
2549Mn
2650Fe
2751Co
2852Ni
2953Cu
3054Zn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 41Cl

 


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Last update: 2023-10-04


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