Isotopes of Krypton
List of known isotopes of the element Krypton.
| Isotope | t½ | % | Spin/parity | Radius | Isotopic mass | Discovery |
|---|---|---|---|---|---|---|
| 67Kr | 7.4 ±30 ms | syn. | — | — | 6.698·107 ±455 keV/c2 | 2016 |
| 68Kr | 21.6 ±33 ms | syn. | 0+ | — | 6.797·107 ±537 keV/c2 | 2016 |
| 69Kr | 28 ±1 ms | syn. | (5/2-) | — | 6.896·107 ±322 keV/c2 | 1995 |
| 70Kr | 40 ±6 ms | syn. | 0+ | — | 6.995·107 ±215 keV/c2 | 1995 |
| 71Kr | 94.9 ±4 ms | syn. | (5/2)- | — | 7.095·107 ±138.2 keV/c2 | 1981 |
| 72Kr | 17.1 ±2 s | syn. | 0+ | 4.163 ±0.006 fm | 7.194·107 ±8.6 keV/c2 | 1973 |
| 73Kr | 27.3 ±10 s | syn. | (3/2)- | — | 7.293·107 ±7.061 keV/c2 | 1972 |
| 74Kr | 11.5 ±11 m | syn. | 0+ | 4.187 ±0.0041 fm | 7.393·107 ±2.161 keV/c2 | 1960 |
| 75Kr | 4.6 ±7 m | syn. | 5/2+ | 4.209 ±0.0041 fm | 7.493·107 ±8.7 keV/c2 | 1960 |
| 76Kr | 14.8 ±1 h | syn. | 0+ | 4.202 ±0.0036 fm | 7.592·107 ±4.308 keV/c2 | 1954 |
| 77Kr | 71.25 ±42 m | syn. | 5/2+ | 4.208 ±0.0037 fm | 7.692·107 ±2.1 keV/c2 | 1948 |
| 78Kr | stab. | 0.355 ±0.003 % | 0+ | 4.203 ±0.0033 fm | 7.792·107 ±0.329 keV/c2 | 1920 |
| 79Kr | 35.04 ±10 h | syn. | 1/2- | 4.203 ±0.0032 fm | 7.892·107 ±3.736 keV/c2 | 1948 |
| 80Kr | stab. | 2.286 ±0.01 % | 0+ | 4.197 ±0.0029 fm | 7.991·107 ±0.745 keV/c2 | 1920 |
| 81Kr | 229,000 ±11 a | syn. | 7/2+ | 4.195 ±0.0026 fm | 8.091·107 ±1.152 keV/c2 | 1950 |
| 82Kr | stab. | 11.59 ±0.031 % | 0+ | 4.191 ±0.0025 fm | 8.191·107 ±0.00591 keV/c2 | 1920 |
| 83Kr | stab. | 11.5 ±0.019 % | 9/2+ | 4.187 ±0.0023 fm | 8.291·107 ±0.009 keV/c2 | 1920 |
| 84Kr | stab. | 56.98 ±0.015 % | 0+ | 4.188 ±0.0022 fm | 8.391·107 ±0.0041 keV/c2 | 1920 |
| 85Kr | 10.73 ±14 a | syn. | 9/2+ | 4.184 ±0.0022 fm | 8.491·107 ±2.147 keV/c2 | 1940 |
| 86Kr | stab. | 17.27 ±0.041 % | 0+ | 4.183 ±0.0021 fm | 8.591·107 ±0.00399 keV/c2 | 1920 |
| 87Kr | 76.3 ±5 m | syn. | 5/2+ | 4.198 ±0.0027 fm | 8.691·107 ±0.264 keV/c2 | 1940 |
| 88Kr | 2.825 ±19 h | syn. | 0+ | 4.217 ±0.0043 fm | 8.791·107 ±2.8 keV/c2 | 1939 |
| 89Kr | 3.15 ±4 m | syn. | 3/2(+) | 4.228 ±0.0054 fm | 8.891·107 ±2.3 keV/c2 | 1940 |
| 90Kr | 32.32 ±9 s | syn. | 0+ | 4.242 ±0.0069 fm | 8.991·107 ±2 keV/c2 | 1951 |
| 91Kr | 8.57 ±4 s | syn. | 5/2(+) | 4.254 ±0.0081 fm | 9.092·107 ±2.4 keV/c2 | 1951 |
| 92Kr | 1.84 ±8 s | syn. | 0+ | 4.272 ±0.0099 fm | 9.192·107 ±2.9 keV/c2 | 1951 |
| 93Kr | 1.286 ±10 s | syn. | 1/2+ | 4.279 ±0.0107 fm | 9.293·107 ±2.7 keV/c2 | 1951 |
| 94Kr | 212 ±5 ms | syn. | 0+ | 4.3 ±0.0129 fm | 9.393·107 ±13 keV/c2 | 1972 |
| 95Kr | 0.114 ±3 s | syn. | 1/2(+) | 4.306 ±0.0136 fm | 9.493·107 ±20 keV/c2 | 1994 |
| 96Kr | 80 ±8 ms | syn. | 0+ | 4.326 ±0.0158 fm | 9.594·107 ±20.69 keV/c2 | 1994 |
| 97Kr | 63 ±4 ms | syn. | (3/2+) | — | 9.694·107 ±140 keV/c2 | 1997 |
| 98Kr | 43 ±4 ms | syn. | 0+ | — | 9.795·107 ±322 keV/c2 | 1997 |
| 99Kr | 13 ± ms | syn. | — | — | 9.895·107 ±429 keV/c2 | 1997 |
| 100Kr | 7 ± ms | syn. | 0+ | — | 9.996·107 ±429 keV/c2 | 1997 |
| 101Kr | 635 ns | syn. | — | — | 1.009·108 ±537 keV/c2 | 2010 |
| 102Kr | stab. | syn. | 0+ | — | — | — |
67KrKrypton-67
| Classification | z: 36; n: 31; m: 67 |
|---|---|
| Half life | 7.4 ±30 ms |
| Natural abundance | synthetic nuclide |
| Decay modes | electron capture (EC); electron capture + β⁺ decay; two-proton emission |
| Discovery | 2016 |
| Mass excess | -15,560 ±424 keV |
| Binding energy | 7,883 ±6 keV |
| Single-particle energy | -729 ±583 keV |
68KrKrypton-68
| Classification | z: 36; n: 32; m: 68 |
|---|---|
| Half life | 21.6 ±33 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 2016 |
| Mass excess | -25,630 ±500 keV |
| Binding energy | 8,034 ±7 keV |
| Single-particle energy | 386 ±583 keV |
| Neutron separation energy | 18,140 ±656 keV |
69KrKrypton-69
| Classification | z: 36; n: 33; m: 69 |
|---|---|
| Half life | 28 ±1 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2-) |
| Decay modes | electron capture + β⁺ decay; β⁺ decay + proton emission |
| Discovery | 1995 |
| Mass excess | -32,140 ±300 keV |
| Binding energy | 8,129 ±4 keV |
| Single-particle energy | 638 ±396 keV |
| Neutron separation energy | 14,580 ±583 keV |
| Q value for electron capture | 14,110 ±302.9 keV |
70KrKrypton-70
| Classification | z: 36; n: 34; m: 70 |
|---|---|
| Half life | 40 ±6 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1995 |
| Mass excess | -41,100 ±200 keV |
| Binding energy | 8,256 ±3 keV |
| Single-particle energy | 2,130 ±205 keV |
| Neutron separation energy | 17,030 ±361 keV |
| Q value for electron capture | 10,320 ±200.5 keV |
71KrKrypton-71
| Classification | z: 36; n: 35; m: 71 |
|---|---|
| Half life | 94.9 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2)- |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1981 |
| Mass excess | -46,330 ±128.7 keV |
| Binding energy | 8,327 ±1.813 keV |
| Single-particle energy | 2,190 ±129.6 keV |
| Neutron separation energy | 13,290 ±238 keV |
| Q value for electron capture | 10,170 ±128.8 keV |
| β⁻ decay energy | -14,040 ±420 keV |
72KrKrypton-72
| Classification | z: 36; n: 36; m: 72 |
|---|---|
| Half life | 17.1 ±2 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1973 |
| Mass excess | -53,950 ±8.011 keV |
| Binding energy | 8,429 ±0.1113 keV |
| Single-particle energy | 4,727 ±9.662 keV |
| Neutron separation energy | 15,680 ±129 keV |
| Q value for electron capture | 5,121 ±8.076 keV |
| β⁻ decay energy | -15,620 ±500 keV |
| β⁻ decay energy with neutron | -29,730 ±400 keV |
73KrKrypton-73
| Classification | z: 36; n: 37; m: 73 |
|---|---|
| Half life | 27.3 ±10 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3/2)- |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1972 |
| Mass excess | -56,560 ±6.578 keV |
| Binding energy | 8,460 ±0.0901 keV |
| Single-particle energy | 4,778 ±6.657 keV |
| Neutron separation energy | 10,680 ±10.36 keV |
| Q value for electron capture | 7,094 ±9.419 keV |
| β⁻ decay energy | -10,550 ±41.32 keV |
| β⁻ decay energy with neutron | -26,300 ±500 keV |
74KrKrypton-74
| Classification | z: 36; n: 38; m: 74 |
|---|---|
| Half life | 11.5 ±11 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1960 |
| Mass excess | -62,340 ±2.013 keV |
| Binding energy | 8,533 ±0.0272 keV |
| Single-particle energy | 5,975 ±7.035 keV |
| Neutron separation energy | 13,850 ±6.879 keV |
| Q value for electron capture | 2,956 ±6.172 keV |
| β⁻ decay energy | -10,420 ±3.424 keV |
| β⁻ decay energy with neutron | -24,400 ±40.84 keV |
75KrKrypton-75
| Classification | z: 36; n: 39; m: 75 |
|---|---|
| Half life | 4.6 ±7 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5/2+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1960 |
| Mass excess | -64,330 ±8.104 keV |
| Binding energy | 8,553 ±0.1081 keV |
| Single-particle energy | 6,324 ±9.986 keV |
| Neutron separation energy | 10,060 ±8.35 keV |
| Q value for electron capture | 4,783 ±9.167 keV |
| β⁻ decay energy | -7,105 ±8.189 keV |
| β⁻ decay energy with neutron | -20,480 ±8.65 keV |
| Magnetic dipole moment | -0.531 ±0.004 μN |
| Electric quadrupole moment | 1.137 ±0.013 b |
76KrKrypton-76
| Classification | z: 36; n: 40; m: 76 |
|---|---|
| Half life | 14.8 ±1 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1954 |
| Mass excess | -69,020 ±4.013 keV |
| Binding energy | 8,608 ±0.0528 keV |
| Single-particle energy | 7,195 ±5.87 keV |
| Neutron separation energy | 12,760 ±9.043 keV |
| Q value for electron capture | 1,275 ±10.14 keV |
| β⁻ decay energy | -8,535 ±4.121 keV |
| β⁻ decay energy with neutron | -19,870 ±4.183 keV |
77KrKrypton-77
| Classification | z: 36; n: 41; m: 77 |
|---|---|
| Half life | 71.25 ±42 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5/2+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1948 |
| Mass excess | -70,170 ±1.956 keV |
| Binding energy | 8,616 ±0.0254 keV |
| Single-particle energy | 7,169 ±9.524 keV |
| Neutron separation energy | 9,227 ±4.464 keV |
| Q value for electron capture | 3,065 ±3.425 keV |
| β⁻ decay energy | -5,339 ±2.351 keV |
| β⁻ decay energy with neutron | -17,770 ±2.169 keV |
| Magnetic dipole moment | -0.583 ±0.003 μN |
| Electric quadrupole moment | 0.948 ±0.01 b |
78KrKrypton-78
| Classification | z: 36; n: 42; m: 78 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 0.355 ±0.003 % |
| Spin/parity | 0+ |
| Discovery | 1920 |
| Mass excess | -74,180 ±0.307 keV |
| Binding energy | 8,661 ±0.0039 keV |
| Single-particle energy | 8,232 ±2.826 keV |
| Neutron separation energy | 12,080 ±1.98 keV |
| Q value for electron capture | -726.2 ±3.593 keV |
| β⁻ decay energy | -7,243 ±3.252 keV |
| β⁻ decay energy with neutron | -17,420 ±1.339 keV |
| Magnetic dipole moment | 1.8 ±0.4 μN |
79KrKrypton-79
| Classification | z: 36; n: 43; m: 79 |
|---|---|
| Half life | 35.04 ±10 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1/2- |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1948 |
| Mass excess | -74,450 ±3.48 keV |
| Binding energy | 8,657 ±0.0441 keV |
| Single-particle energy | 8,279 ±4.991 keV |
| Neutron separation energy | 8,335 ±3.492 keV |
| Q value for electron capture | 1,625 ±3.621 keV |
| β⁻ decay energy | -3,640 ±3.942 keV |
| β⁻ decay energy with neutron | -15,580 ±4.753 keV |
| Magnetic dipole moment | 0.536 ±0.002 μN |
80KrKrypton-80
| Classification | z: 36; n: 44; m: 80 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 2.286 ±0.01 % |
| Spin/parity | 0+ |
| Discovery | 1920 |
| Mass excess | -77,900 ±0.695 keV |
| Binding energy | 8,692 ±0.0087 keV |
| Single-particle energy | 9,114 ±1.148 keV |
| Neutron separation energy | 11,520 ±3.525 keV |
| Q value for electron capture | -2,005 ±1.21 keV |
| β⁻ decay energy | -5,718 ±1.988 keV |
| β⁻ decay energy with neutron | -15,170 ±2.056 keV |
81KrKrypton-81
| Classification | z: 36; n: 45; m: 81 |
|---|---|
| Half life | 229,000 ±11 a |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2+ |
| Decay modes | electron capture (EC) |
| Discovery | 1950 |
| Mass excess | -77,700 ±1.074 keV |
| Binding energy | 8,682 ±0.0133 keV |
| Single-particle energy | 9,096 ±1.458 keV |
| Neutron separation energy | 7,874 ±1.251 keV |
| Q value for electron capture | 280.8 ±1.453 keV |
| β⁻ decay energy | -2,240 ±5.018 keV |
| β⁻ decay energy with neutron | -13,600 ±2.15 keV |
| Magnetic dipole moment | -0.907 ±0.002 μN |
| Electric quadrupole moment | 0.644 ±0.004 b |
82KrKrypton-82
| Classification | z: 36; n: 46; m: 82 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 11.59 ±0.031 % |
| Spin/parity | 0+ |
| Discovery | 1920 |
| Mass excess | -80,600 ±0.00551 keV |
| Binding energy | 8,710 ±2.999·10-4 keV |
| Single-particle energy | 9,903 ±0.9779 keV |
| Neutron separation energy | 10,960 ±1.073 keV |
| Q value for electron capture | -3,094 ±0.971 keV |
| β⁻ decay energy | -4,404 ±3.008 keV |
| β⁻ decay energy with neutron | -13,210 ±4.904 keV |
| Magnetic dipole moment | 0.8 ±0.13 μN |
83KrKrypton-83
| Classification | z: 36; n: 47; m: 83 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 11.5 ±0.019 % |
| Spin/parity | 9/2+ |
| Discovery | 1920 |
| Mass excess | -80,000 ±0.009 keV |
| Binding energy | 8,695 ±2.999·10-4 keV |
| Single-particle energy | 9,780 ±0.9714 keV |
| Neutron separation energy | 7,470 ±0.0093 keV |
| Q value for electron capture | -977 ±3.795 keV |
| β⁻ decay energy | -920.1 ±2.328 keV |
| β⁻ decay energy with neutron | -11,880 ±3.008 keV |
| Magnetic dipole moment | -0.9708 ±3·10-6 μN |
| Electric quadrupole moment | 0.259 ±0.001 b |
84KrKrypton-84
| Classification | z: 36; n: 48; m: 84 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 56.98 ±0.015 % |
| Spin/parity | 0+ |
| Discovery | 1920 |
| Mass excess | -82,440 ±0.00382 keV |
| Binding energy | 8,717 ±2.999·10-4 keV |
| Single-particle energy | 10,710 ±3.794 keV |
| Neutron separation energy | 10,520 ±0.0083 keV |
| Q value for electron capture | -4,657 ±25.73 keV |
| β⁻ decay energy | -2,681 ±2.194 keV |
| β⁻ decay energy with neutron | -11,450 ±2.328 keV |
85KrKrypton-85
| Classification | z: 36; n: 49; m: 85 |
|---|---|
| Half life | 10.73 ±14 a |
| Natural abundance | synthetic nuclide |
| Spin/parity | 9/2+ |
| Decay modes | β⁻ decay |
| Discovery | 1940 |
| Mass excess | -81,490 ±2 keV |
| Binding energy | 8,698 ±0.0235 keV |
| Single-particle energy | 10,980 ±25.8 keV |
| Neutron separation energy | 7,112 ±2 keV |
| Q value for electron capture | -2,905 ±3.671 keV |
| β⁻ decay energy | 687 ±2 keV |
| β⁻ decay energy with neutron | -9,793 ±2.968 keV |
| Magnetic dipole moment | -1.006 ±4·10-4 μN |
| Electric quadrupole moment | 0.443 ±0.003 b |
86KrKrypton-86
| Classification | z: 36; n: 50; m: 86 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 17.27 ±0.041 % |
| Spin/parity | 0+ |
| Discovery | 1920 |
| Mass excess | -83,270 ±0.00372 keV |
| Binding energy | 8,712 ±2.999·10-4 keV |
| Single-particle energy | 11,970 ±3.077 keV |
| Neutron separation energy | 9,856 ±2 keV |
| Q value for electron capture | -7,634 ±3.078 keV |
| β⁻ decay energy | -518.7 ±0.2 keV |
| β⁻ decay energy with neutron | -9,170 ±0.0035 keV |
| Magnetic dipole moment | 2.2 ±0.4 μN |
87KrKrypton-87
| Classification | z: 36; n: 51; m: 87 |
|---|---|
| Half life | 76.3 ±5 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5/2+ |
| Decay modes | β⁻ decay |
| Discovery | 1940 |
| Mass excess | -80,710 ±0.246 keV |
| Binding energy | 8,675 ±0.0028 keV |
| Single-particle energy | 12,360 ±3.087 keV |
| Neutron separation energy | 5,515 ±0.2462 keV |
| Q value for electron capture | -6,818 ±3.181 keV |
| β⁻ decay energy | 3,888 ±0.2463 keV |
| β⁻ decay energy with neutron | -6,034 ±0.3172 keV |
| Magnetic dipole moment | -1.022 ±0.002 μN |
| Electric quadrupole moment | -0.3 ±0.003 b |
88KrKrypton-88
| Classification | z: 36; n: 52; m: 88 |
|---|---|
| Half life | 2.825 ±19 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay |
| Discovery | 1939 |
| Mass excess | -79,700 ±2.608 keV |
| Binding energy | 8,656 ±0.0296 keV |
| Single-particle energy | 13,080 ±4.105 keV |
| Neutron separation energy | 7,053 ±2.619 keV |
| Q value for electron capture | -8,976 ±4.106 keV |
| β⁻ decay energy | 2,917 ±2.613 keV |
| β⁻ decay energy with neutron | -3,165 ±2.608 keV |
89KrKrypton-89
| Classification | z: 36; n: 53; m: 89 |
|---|---|
| Half life | 3.15 ±4 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2(+) |
| Decay modes | β⁻ decay |
| Discovery | 1940 |
| Mass excess | -76,540 ±2.142 keV |
| Binding energy | 8,614 ±0.0241 keV |
| Single-particle energy | 13,100 ±3.827 keV |
| Neutron separation energy | 4,915 ±3.375 keV |
| Q value for electron capture | -8,262 ±3.904 keV |
| β⁻ decay energy | 5,176 ±5.834 keV |
| β⁻ decay energy with neutron | -1,999 ±2.148 keV |
| Magnetic dipole moment | -0.33 ±0.003 μN |
| Electric quadrupole moment | 0.166 ±0.002 b |
90KrKrypton-90
| Classification | z: 36; n: 54; m: 90 |
|---|---|
| Half life | 32.32 ±9 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay |
| Discovery | 1951 |
| Mass excess | -74,960 ±1.863 keV |
| Binding energy | 8,591 ±0.0207 keV |
| Single-particle energy | 13,970 ±3.758 keV |
| Neutron separation energy | 6,494 ±2.839 keV |
| Q value for electron capture | -10,960 ±3.839 keV |
| β⁻ decay energy | 4,406 ±6.715 keV |
| β⁻ decay energy with neutron | -1,319 ±5.737 keV |
91KrKrypton-91
| Classification | z: 36; n: 55; m: 91 |
|---|---|
| Half life | 8.57 ±4 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5/2(+) |
| Decay modes | β⁻ decay |
| Discovery | 1951 |
| Mass excess | -70,980 ±2.236 keV |
| Binding energy | 8,541 ±0.0246 keV |
| Single-particle energy | 14,260 ±4.033 keV |
| Neutron separation energy | 4,086 ±2.91 keV |
| Q value for electron capture | -9,867 ±4.19 keV |
| β⁻ decay energy | 6,771 ±8.115 keV |
| β⁻ decay energy with neutron | 320.2 ±6.828 keV |
| Magnetic dipole moment | -0.583 ±0.002 μN |
| Electric quadrupole moment | 0.303 ±0.006 b |
92KrKrypton-92
| Classification | z: 36; n: 56; m: 92 |
|---|---|
| Half life | 1.84 ±8 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1951 |
| Mass excess | -68,770 ±2.701 keV |
| Binding energy | 8,512 ±0.0294 keV |
| Single-particle energy | 14,950 ±4.455 keV |
| Neutron separation energy | 5,866 ±3.506 keV |
| Q value for electron capture | -12,540 ±7.232 keV |
| β⁻ decay energy | 6,003 ±6.692 keV |
| β⁻ decay energy with neutron | 904.4 ±8.255 keV |
93KrKrypton-93
| Classification | z: 36; n: 57; m: 93 |
|---|---|
| Half life | 1.286 ±10 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1/2+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1951 |
| Mass excess | -64,140 ±2.515 keV |
| Binding energy | 8,458 ±0.027 keV |
| Single-particle energy | 15,190 ±7.164 keV |
| Neutron separation energy | 3,437 ±3.69 keV |
| Q value for electron capture | -11,250 ±430.8 keV |
| β⁻ decay energy | 8,483 ±8.224 keV |
| β⁻ decay energy with neutron | 2,565 ±6.619 keV |
| Magnetic dipole moment | -0.413 ±0.002 μN |
94KrKrypton-94
| Classification | z: 36; n: 58; m: 94 |
|---|---|
| Half life | 212 ±5 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1972 |
| Mass excess | -61,350 ±12.1 keV |
| Binding energy | 8,424 ±0.1288 keV |
| Single-particle energy | 15,740 ±430.9 keV |
| Neutron separation energy | 5,283 ±12.36 keV |
| Q value for electron capture | -13,700 ±200.3 keV |
| β⁻ decay energy | 7,215 ±12.27 keV |
| β⁻ decay energy with neutron | 3,200 ±14.42 keV |
| Electric quadrupole moment | -0.5 ±0.3 b |
95KrKrypton-95
| Classification | z: 36; n: 59; m: 95 |
|---|---|
| Half life | 0.114 ±3 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1/2(+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1994 |
| Mass excess | -56,160 ±18.63 keV |
| Binding energy | 8,365 ±0.1961 keV |
| Single-particle energy | 15,790 ±201 keV |
| Neutron separation energy | 2,882 ±22.21 keV |
| Q value for electron capture | -12,310 ±300.5 keV |
| β⁻ decay energy | 9,731 ±27.51 keV |
| β⁻ decay energy with neutron | 4,332 ±18.74 keV |
| Magnetic dipole moment | -0.41 ±0.003 μN |
96KrKrypton-96
| Classification | z: 36; n: 60; m: 96 |
|---|---|
| Half life | 80 ±8 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1994 |
| Mass excess | -53,090 ±19.27 keV |
| Binding energy | 8,330 ±0.2008 keV |
| Single-particle energy | 16,520 ±301 keV |
| Neutron separation energy | 4,994 ±26.8 keV |
| Q value for electron capture | -14,880 ±300.6 keV |
| β⁻ decay energy | 8,272 ±19.56 keV |
| β⁻ decay energy with neutron | 4,737 ±27.95 keV |
97KrKrypton-97
| Classification | z: 36; n: 61; m: 97 |
|---|---|
| Half life | 63 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3/2+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1997 |
| Mass excess | -47,430 ±130.4 keV |
| Binding energy | 8,269 ±1.344 keV |
| Single-particle energy | 16,500 ±327 keV |
| Neutron separation energy | 2,413 ±131.8 keV |
| Q value for electron capture | -13,430 ±420.7 keV |
| β⁻ decay energy | 11,090 ±130.4 keV |
| β⁻ decay energy with neutron | 5,859 ±130.4 keV |
98KrKrypton-98
| Classification | z: 36; n: 62; m: 98 |
|---|---|
| Half life | 43 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission |
| Discovery | 1997 |
| Mass excess | -44,120 ±300 keV |
| Binding energy | 8,234 ±3 keV |
| Single-particle energy | 17,400 ±500 keV |
| Neutron separation energy | 4,768 ±327 keV |
| Q value for electron capture | -16,070 ±500 keV |
| β⁻ decay energy | 10,240 ±300 keV |
| β⁻ decay energy with neutron | 6,328 ±300 keV |
99KrKrypton-99
| Classification | z: 36; n: 63; m: 99 |
|---|---|
| Half life | 13 ± ms |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1997 |
| Mass excess | -38,400 ±400 keV |
| Binding energy | 8,175 ±4 keV |
| Single-particle energy | 17,630 ±565 keV |
| Neutron separation energy | 2,351 ±500 keV |
| β⁻ decay energy | 12,720 ±400 keV |
| β⁻ decay energy with neutron | 7,898 ±400 keV |
100KrKrypton-100
| Classification | z: 36; n: 64; m: 100 |
|---|---|
| Half life | 7 ± ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission |
| Discovery | 1997 |
| Mass excess | -34,470 ±400 keV |
| Binding energy | 8,134 ±4 keV |
| Neutron separation energy | 4,141 ±565 keV |
| β⁻ decay energy | 11,790 ±400 keV |
| β⁻ decay energy with neutron | 8,580 ±400 keV |
101KrKrypton-101
| Classification | z: 36; n: 65; m: 101 |
|---|---|
| Half life | 635 ns |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission |
| Discovery | 2010 |
| Mass excess | -28,580 ±500 keV |
| Binding energy | 8,075 ±5 keV |
| Neutron separation energy | 2,181 ±640 keV |
| β⁻ decay energy | 13,980 ±501 keV |
| β⁻ decay energy with neutron | 9,614 ±500 keV |
102KrKrypton-102
| Classification | z: 36; n: 66; m: 102 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |