Potassium-53
Properties and data of the isotope 53K.
See also: list of Potassium isotopes.
General data
Name of the isotope:Potassium-53; K-53Symbol:53K or 5319KMass number A:53 (= number of nucleons)Atomic number Z:19 (= number of protons)Neutrons N:34Isotopic mass:52.98680(12) u (atomic weight of Potassium-53)Nuclide mass:52.9763772 u (calculated nuclear mass without electrons)Mass excess:-12.29572 MeVMass defect:0.456482752 u (per nucleus)Nuclear binding energy:425.21094459 MeV (per nucleus)
8.02284801 MeV (average binding energy per nucleon)Separation energy:SN = 3.23(12) MeV (first neutron)
SP = 18.30(61) MeV (first proton)Half-life:30(5) msDecay constant λ:23.104906018665 s-1Specific activity α:2.675788434615 × 10+23 Bq g-1
7231860634095.7 Ci g-1Spin and parity:
(nuclear angular momentum)(3/2+)Year of discovery:1983
Radioactive Decay
Half-life T½ = 30(5) ms respectively 3.0 × 10-2 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 53Ca | 16 % | 17.09(12) MeV | |
β-, n | 52Ca | 67 % | 13.90(11) MeV | |
β-, 2n | 51Ca | 17 % | 7,723 MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 34) and isobaric (same nucleon number A = 53) with Potassium-53. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 34 | Isobar A = 53 |
17 | 51Cl | |
18 | 52Ar | 53Ar |
19 | 53K | 53K |
20 | 54Ca | 53Ca |
21 | 55Sc | 53Sc |
22 | 56Ti | 53Ti |
23 | 57V | 53V |
24 | 58Cr | 53Cr |
25 | 59Mn | 53Mn |
26 | 60Fe | 53Fe |
27 | 61Co | 53Co |
28 | 62Ni | 53Ni |
29 | 63Cu | 53Cu |
30 | 64Zn | |
31 | 65Ga | |
32 | 66Ge | |
33 | 67As | |
34 | 68Se | |
35 | 69Br | |
36 | 70Kr | |
37 | 71Rb | |
External data and identifiers
Last update: 2020-10-12
Perma link: https://www.chemlin.org/isotope/potassium-53
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