Potassium-52
Properties and data of the isotope 52K.
See also: list of Potassium isotopes.
General data
Name of the isotope:Potassium-52; K-52Symbol:52K or 5219KMass number A:52 (= number of nucleons)Atomic number Z:19 (= number of protons)Neutrons N:33Isotopic mass:51.98160(4) u (atomic weight of Potassium-52)Nuclide mass:51.9711772 u (calculated nuclear mass without electrons)Mass excess:-17.13949 MeVMass defect:0.453017836 u (per nucleus)Nuclear binding energy:421.98339613 MeV (per nucleus)
8.11506531 MeV (average binding energy per nucleon)Separation energy:SN = 2.69(4) MeV (first neutron)
SP = 17.74(60) MeV (first proton)Half-life:110(6) msDecay constant λ:6.3013380050904 s-1Specific activity α:7.440695112299 × 10+22 Bq g-1
2010998678999.9 Ci g-1Spin and parity:
(nuclear angular momentum)(2-)Year of discovery:1983
Radioactive Decay
Half-life T½ = 110(6) ms respectively 1.10 × 10-1 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 52Ca | 23.7 % | 17.13(3) MeV | |
β-, n | 51Ca | 74(9) % | 11.12(3) MeV | |
β-, 2n | 50Ca | 2.3(3) % | 7,229 MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 33) and isobaric (same nucleon number A = 52) with Potassium-52. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 33 | Isobar A = 52 |
16 | 49S | |
17 | 50Cl | |
18 | 51Ar | 52Ar |
19 | 52K | 52K |
20 | 53Ca | 52Ca |
21 | 54Sc | 52Sc |
22 | 55Ti | 52Ti |
23 | 56V | 52V |
24 | 57Cr | 52Cr |
25 | 58Mn | 52Mn |
26 | 59Fe | 52Fe |
27 | 60Co | 52Co |
28 | 61Ni | 52Ni |
29 | 62Cu | |
30 | 63Zn | |
31 | 64Ga | |
32 | 65Ge | |
33 | 66As | |
34 | 67Se | |
35 | 68Br | |
36 | 69Kr | |
External data and identifiers
Last update: 2020-10-12
Perma link: https://www.chemlin.org/isotope/potassium-52
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