Krypton-67
Properties and data of the isotope 67Kr.
See also: list of Krypton isotopes.
General data
Name of the isotope:Krypton-67; Kr-67Symbol:67Kr or 6736KrMass number A:67 (= number of nucleons)Atomic number Z:36 (= number of protons)Neutrons N:31Isotopic mass:66.98331(46) u (atomic weight of Krypton-67)Nuclide mass:66.9635619 u (calculated nuclear mass without electrons)Mass excess:-15.54663 MeVMass defect:0.56700354799999 u (per nucleus)Nuclear binding energy:528.16040294 MeV (per nucleus)
7.88299109 MeV (average binding energy per nucleon)Half-life:7.4(30) msDecay constant λ:93.668537913506 s-1Specific activity α:8.546744385749 × 10+23 Bq g-1
23099309150674 Ci g-1Spin and parity:
(nuclear angular momentum)Mirror nucleus:Gallium-67Year of discovery:2016
Radioactive Decay
Half-life T½ = 7.4(30) ms respectively 7.4 × 10-3 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
EE/β+ | 67Br | 63(14) % | | |
2p | 65Se | 27(14) % | | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 31) and isobaric (same nucleon number A = 67) with Krypton-67. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 31 | Isobar A = 67 |
15 | 46P | |
16 | 47S | |
17 | 48Cl | |
18 | 49Ar | |
19 | 50K | |
20 | 51Ca | |
21 | 52Sc | |
22 | 53Ti | |
23 | 54V | 67V |
24 | 55Cr | 67Cr |
25 | 56Mn | 67Mn |
26 | 57Fe | 67Fe |
27 | 58Co | 67Co |
28 | 59Ni | 67Ni |
29 | 60Cu | 67Cu |
30 | 61Zn | 67Zn |
31 | 62Ga | 67Ga |
32 | 63Ge | 67Ge |
33 | 64As | 67As |
34 | 65Se | 67Se |
35 | 66Br | 67Br |
36 | 67Kr | 67Kr |
External data and identifiers
Last update: 2023-10-04
Perma link: https://www.chemlin.org/isotope/krypton-67
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