Chlorine-41
Properties and data of the isotope 41Cl.
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-1Spin 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 | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 41Ar | 100 % | 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.
Z | Isotone N = 24 | Isobar A = 41 |
10 | 34Ne | |
11 | 35Na | |
12 | 36Mg | |
13 | 37Al | 41Al |
14 | 38Si | 41Si |
15 | 39P | 41P |
16 | 40S | 41S |
17 | 41Cl | 41Cl |
18 | 42Ar | 41Ar |
19 | 43K | 41K |
20 | 44Ca | 41Ca |
21 | 45Sc | 41Sc |
22 | 46Ti | 41Ti |
23 | 47V | 41V |
24 | 48Cr | 41Cr |
25 | 49Mn | |
26 | 50Fe | |
27 | 51Co | |
28 | 52Ni | |
29 | 53Cu | |
30 | 54Zn | |
External data and identifiers
Last update: 2023-10-04
Perma link: https://www.chemlin.org/isotope/chlorine-41
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