Isotopes of Selenium
List of known isotopes of the element Selenium.
| Isotope | t½ | % | Spin/parity | Radius | Isotopic mass | Discovery |
|---|---|---|---|---|---|---|
| 63Se | 13.2 ±39 ms | syn. | — | — | 6.298·107 ±537 keV/c2 | 2016 |
| 64Se | stab. | syn. | 0+ | — | 6.397·107 ±537 keV/c2 | 2005 |
| 65Se | 33 ±4 ms | syn. | (3/2-) | — | 6.496·107 ±322 keV/c2 | 1993 |
| 66Se | 42 ±12 ms | syn. | 0+ | — | 6.595·107 ±215 keV/c2 | 1993 |
| 67Se | 133 ±4 ms | syn. | (5/2-) | — | 6.694·107 ±72 keV/c2 | 1991 |
| 68Se | 35.5 ±7 s | syn. | 0+ | — | 6.794·107 ±0.532 keV/c2 | 1990 |
| 69Se | 27.4 ±2 s | syn. | 1/2- | — | 6.893·107 ±1.599 keV/c2 | 1974 |
| 70Se | 41.1 ±3 m | syn. | 0+ | — | 6.993·107 ±1.7 keV/c2 | 1950 |
| 71Se | 4.74 ±5 m | syn. | (5/2-) | — | 7.093·107 ±3 keV/c2 | 1957 |
| 72Se | 8.4 ±8 d | syn. | 0+ | — | 7.192·107 ±2.1 keV/c2 | 1948 |
| 73Se | 7.15 ±9 h | syn. | 9/2+ | — | 7.292·107 ±7.969 keV/c2 | 1948 |
| 74Se | stab. | 0.86 ±0.03 % | 0+ | 4.07 ±0.02 fm | 7.392·107 ±0.015 keV/c2 | 1922 |
| 75Se | 119.7 ±5 d | syn. | 5/2+ | — | 7.492·107 ±0.078 keV/c2 | 1947 |
| 76Se | stab. | 9.23 ±0.07 % | 0+ | 4.139 ±0.0016 fm | 7.591·107 ±0.017 keV/c2 | 1922 |
| 77Se | stab. | 7.6 ±0.07 % | 1/2- | 4.139 ±0.0018 fm | 7.691·107 ±0.067 keV/c2 | 1922 |
| 78Se | stab. | 23.69 ±0.22 % | 0+ | 4.14 ±0.0017 fm | 7.791·107 ±0.191 keV/c2 | 1922 |
| 79Se | 327,000 ±28 a | syn. | 7/2+ | — | 7.891·107 ±0.238 keV/c2 | 1950 |
| 80Se | stab. | 49.8 ±0.36 % | 0+ | 4.14 ±0.0018 fm | 7.991·107 ±1.016 keV/c2 | 1922 |
| 81Se | 18.45 ±12 m | syn. | 1/2- | — | 8.091·107 ±1.049 keV/c2 | 1948 |
| 82Se | 9.6·1019 ±10 a | 8.82 ±0.15 % | 0+ | 4.14 ±0.0019 fm | 8.191·107 ±0.5 keV/c2 | 1922 |
| 83Se | 22.3 ±2 m | syn. | 9/2+ | — | 8.291·107 ±3.259 keV/c2 | 1937 |
| 84Se | 3.26 ±10 m | syn. | 0+ | — | 8.391·107 ±2.105 keV/c2 | 1960 |
| 85Se | 32.9 ±3 s | syn. | (5/2)+ | — | 8.492·107 ±2.804 keV/c2 | 1960 |
| 86Se | 14.3 ±3 s | syn. | 0+ | — | 8.592·107 ±2.705 keV/c2 | 1973 |
| 87Se | 5.5 ±14 s | syn. | (3/2+) | — | 8.692·107 ±2.405 keV/c2 | 1968 |
| 88Se | 1.53 ±6 s | syn. | 0+ | — | 8.793·107 ±3.604 keV/c2 | 1970 |
| 89Se | 0.43 ±5 s | syn. | (5/2+) | — | 8.893·107 ±4.003 keV/c2 | 1971 |
| 90Se | 195 ± ms | syn. | 0+ | — | 8.994·107 ±354 keV/c2 | 1994 |
| 91Se | 0.27 ±5 s | syn. | — | — | 9.094·107 ±465 keV/c2 | 1975 |
| 92Se | stab. | syn. | 0+ | — | 9.194·107 ±429 keV/c2 | 1997 |
| 93Se | stab. | syn. | (1/2+) | — | 9.295·107 ±429 keV/c2 | 1997 |
| 94Se | 150 ns | syn. | 0+ | — | 9.396·107 ±537 keV/c2 | 1997 |
| 95Se | 392 ns | syn. | — | — | 9.496·107 ±537 keV/c2 | 2010 |
63SeSelenium-63
| Classification | z: 34; n: 29; m: 63 |
|---|---|
| Half life | 13.2 ±39 ms |
| Natural abundance | synthetic nuclide |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission; two-proton emission |
| Discovery | 2016 |
| Mass excess | -16,850 ±500 keV |
| Binding energy | 7,917 ±8 keV |
| Single-particle energy | -281 ±583 keV |
64SeSelenium-64
| Classification | z: 34; n: 30; m: 64 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Discovery | 2005 |
| Mass excess | -26,860 ±500 keV |
| Binding energy | 8,075 ±8 keV |
| Single-particle energy | 648 ±539 keV |
| Neutron separation energy | 18,080 ±707 keV |
| Q value for electron capture | 12,670 ±539.6 keV |
65SeSelenium-65
| Classification | z: 34; n: 31; m: 65 |
|---|---|
| Half life | 33 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3/2-) |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1993 |
| Mass excess | -33,020 ±300 keV |
| Binding energy | 8,170 ±5 keV |
| Single-particle energy | 776 ±362 keV |
| Neutron separation energy | 14,230 ±583 keV |
| Q value for electron capture | 13,910 ±311.7 keV |
| β⁻ decay energy | -16,530 ±583 keV |
66SeSelenium-66
| Classification | z: 34; n: 32; m: 66 |
|---|---|
| Half life | 42 ±12 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture (EC) |
| Discovery | 1993 |
| Mass excess | -41,660 ±200 keV |
| Binding energy | 8,300 ±3 keV |
| Single-particle energy | 2,012 ±217 keV |
| Neutron separation energy | 16,710 ±361 keV |
| Q value for electron capture | 10,360 ±200 keV |
| β⁻ decay energy | -18,100 ±447 keV |
| β⁻ decay energy with neutron | -33,250 ±539 keV |
67SeSelenium-67
| Classification | z: 34; n: 33; m: 67 |
|---|---|
| Half life | 133 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2-) |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1991 |
| Mass excess | -46,590 ±67.06 keV |
| Binding energy | 8,369 ±1.001 keV |
| Single-particle energy | 1,844 ±67.3 keV |
| Neutron separation energy | 12,990 ±211 keV |
| Q value for electron capture | 10,000 ±67.06 keV |
| β⁻ decay energy | -14,060 ±307 keV |
| β⁻ decay energy with neutron | -31,090 ±405 keV |
68SeSelenium-68
| Classification | z: 34; n: 34; m: 68 |
|---|---|
| Half life | 35.5 ±7 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1990 |
| Mass excess | -54,190 ±0.496 keV |
| Binding energy | 8,477 ±0.0073 keV |
| Single-particle energy | 4,891 ±0.6645 keV |
| Neutron separation energy | 15,680 ±67.06 keV |
| Q value for electron capture | 4,705 ±1.911 keV |
| β⁻ decay energy | -15,400 ±259 keV |
| β⁻ decay energy with neutron | -29,740 ±300 keV |
69SeSelenium-69
| Classification | z: 34; n: 35; m: 69 |
|---|---|
| Half life | 27.4 ±2 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1/2- |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1974 |
| Mass excess | -56,440 ±1.49 keV |
| Binding energy | 8,503 ±0.0216 keV |
| Single-particle energy | 4,829 ±2.372 keV |
| Neutron separation energy | 10,310 ±1.57 keV |
| Q value for electron capture | 6,677 ±32.03 keV |
| β⁻ decay energy | -10,180 ±42.02 keV |
| β⁻ decay energy with neutron | -25,720 ±259 keV |
70SeSelenium-70
| Classification | z: 34; n: 36; m: 70 |
|---|---|
| Half life | 41.1 ±3 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1950 |
| Mass excess | -61,930 ±1.584 keV |
| Binding energy | 8,576 ±0.0226 keV |
| Single-particle energy | 6,106 ±32.03 keV |
| Neutron separation energy | 13,560 ±2.174 keV |
| Q value for electron capture | 2,404 ±2.112 keV |
| β⁻ decay energy | -10,510 ±14.98 keV |
| β⁻ decay energy with neutron | -23,750 ±42.03 keV |
| Electric quadrupole moment | -0.6 ±0.3 b |
71SeSelenium-71
| Classification | z: 34; n: 37; m: 71 |
|---|---|
| Half life | 4.74 ±5 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2-) |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1957 |
| Mass excess | -63,150 ±2.794 keV |
| Binding energy | 8,586 ±0.0394 keV |
| Single-particle energy | 6,101 ±3.124 keV |
| Neutron separation energy | 9,287 ±3.212 keV |
| Q value for electron capture | 4,746 ±5.014 keV |
| β⁻ decay energy | -6,645 ±6.082 keV |
| β⁻ decay energy with neutron | -19,800 ±15.16 keV |
72SeSelenium-72
| Classification | z: 34; n: 38; m: 72 |
|---|---|
| Half life | 8.4 ±8 d |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture (EC) |
| Discovery | 1948 |
| Mass excess | -67,870 ±1.956 keV |
| Binding energy | 8,644 ±0.0272 keV |
| Single-particle energy | 7,263 ±4.599 keV |
| Neutron separation energy | 12,790 ±3.411 keV |
| Q value for electron capture | 361.6 ±4.527 keV |
| β⁻ decay energy | -8,807 ±2.208 keV |
| β⁻ decay energy with neutron | -19,440 ±5.745 keV |
73SeSelenium-73
| Classification | z: 34; n: 39; m: 73 |
|---|---|
| Half life | 7.15 ±9 h |
| Natural abundance | synthetic nuclide |
| Spin/parity | 9/2+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1948 |
| Mass excess | -68,230 ±7.424 keV |
| Binding energy | 8,641 ±0.1017 keV |
| Single-particle energy | 7,286 ±8.472 keV |
| Neutron separation energy | 8,430 ±7.677 keV |
| Q value for electron capture | 2,725 ±8.364 keV |
| β⁻ decay energy | -4,582 ±10.02 keV |
| β⁻ decay energy with neutron | -17,240 ±7.494 keV |
| Magnetic dipole moment | 0.892 ±0.013 μN |
74SeSelenium-74
| Classification | z: 34; n: 40; m: 74 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 0.86 ±0.03 % |
| Spin/parity | 0+ |
| Discovery | 1922 |
| Mass excess | -72,220 ±0.015 keV |
| Binding energy | 8,687 ±3·10-4 keV |
| Single-particle energy | 8,549 ±3.853 keV |
| Neutron separation energy | 12,050 ±7.423 keV |
| Q value for electron capture | -1,354 ±1.693 keV |
| β⁻ decay energy | -6,926 ±5.835 keV |
| β⁻ decay energy with neutron | -16,640 ±6.741 keV |
| Magnetic dipole moment | 1.7 ±0.3 μN |
| Electric quadrupole moment | -0.36 ±0.07 b |
75SeSelenium-75
| Classification | z: 34; n: 41; m: 75 |
|---|---|
| Half life | 119.7 ±5 d |
| Natural abundance | synthetic nuclide |
| Spin/parity | 5/2+ |
| Decay modes | electron capture (EC) |
| Discovery | 1947 |
| Mass excess | -72,170 ±0.073 keV |
| Binding energy | 8,678 ±0.001 keV |
| Single-particle energy | 8,598 ±1.694 keV |
| Neutron separation energy | 8,027 ±0.0715 keV |
| Q value for electron capture | 864.7 ±0.887 keV |
| β⁻ decay energy | -3,063 ±4.285 keV |
| β⁻ decay energy with neutron | -14,960 ±5.835 keV |
| Magnetic dipole moment | 0.683 ±0.01 μN |
| Electric quadrupole moment | 1.1 ±0.2 b |
76SeSelenium-76
| Classification | z: 34; n: 42; m: 76 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 9.23 ±0.07 % |
| Spin/parity | 0+ |
| Discovery | 1922 |
| Mass excess | -75,260 ±0.016 keV |
| Binding energy | 8,711 ±3·10-4 keV |
| Single-particle energy | 9,506 ±0.8839 keV |
| Neutron separation energy | 11,150 ±0.0746 keV |
| Q value for electron capture | -2,961 ±0.886 keV |
| β⁻ decay energy | -4,963 ±9.321 keV |
| β⁻ decay energy with neutron | -14,220 ±4.284 keV |
| Magnetic dipole moment | 0.61 ±0.11 μN |
77SeSelenium-77
| Classification | z: 34; n: 43; m: 77 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 7.6 ±0.07 % |
| Spin/parity | 1/2- |
| Discovery | 1922 |
| Mass excess | -74,600 ±0.062 keV |
| Binding energy | 8,694 ±8·10-4 keV |
| Single-particle energy | 9,597 ±0.8879 keV |
| Neutron separation energy | 7,418 ±0.0603 keV |
| Q value for electron capture | -683.2 ±1.693 keV |
| β⁻ decay energy | -1,365 ±2.809 keV |
| β⁻ decay energy with neutron | -12,390 ±9.322 keV |
| Magnetic dipole moment | 0.5335 ±5·10-5 μN |
| Electric quadrupole moment | 0.76 ±0.05 b |
78SeSelenium-78
| Classification | z: 34; n: 44; m: 78 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 23.69 ±0.22 % |
| Spin/parity | 0+ |
| Discovery | 1922 |
| Mass excess | -77,030 ±0.179 keV |
| Binding energy | 8,717 ±0.0023 keV |
| Single-particle energy | 10,390 ±1.696 keV |
| Neutron separation energy | 10,490 ±0.1684 keV |
| Q value for electron capture | -4,209 ±9.781 keV |
| β⁻ decay energy | -3,574 ±3.575 keV |
| β⁻ decay energy with neutron | -11,870 ±2.815 keV |
| Magnetic dipole moment | 0.6 ±0.2 μN |
| Electric quadrupole moment | -0.26 ±0.09 b |
79SeSelenium-79
| Classification | z: 34; n: 45; m: 79 |
|---|---|
| Half life | 327,000 ±28 a |
| Natural abundance | synthetic nuclide |
| Spin/parity | 7/2+ |
| Decay modes | β⁻ decay |
| Discovery | 1950 |
| Mass excess | -75,920 ±0.223 keV |
| Binding energy | 8,695 ±0.0028 keV |
| Single-particle energy | 10,380 ±9.781 keV |
| Neutron separation energy | 6,962 ±0.1327 keV |
| Q value for electron capture | -2,282 ±5.33 keV |
| β⁻ decay energy | 150.6 ±1.018 keV |
| β⁻ decay energy with neutron | -10,540 ±3.577 keV |
| Magnetic dipole moment | -1.018 ±0.015 μN |
| Electric quadrupole moment | 0.8 ±0.2 b |
80SeSelenium-80
| Classification | z: 34; n: 46; m: 80 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 49.8 ±0.36 % |
| Spin/parity | 0+ |
| Discovery | 1922 |
| Mass excess | -77,760 ±0.947 keV |
| Binding energy | 8,710 ±0.0118 keV |
| Single-particle energy | 11,410 ±5.24 keV |
| Neutron separation energy | 9,913 ±0.9653 keV |
| Q value for electron capture | -5,545 ±3.465 keV |
| β⁻ decay energy | -1,871 ±0.3095 keV |
| β⁻ decay energy with neutron | -9,763 ±0.3369 keV |
| Magnetic dipole moment | 2.3 ±0.9 μN |
81SeSelenium-81
| Classification | z: 34; n: 47; m: 81 |
|---|---|
| Half life | 18.45 ±12 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1/2- |
| Decay modes | β⁻ decay |
| Discovery | 1948 |
| Mass excess | -76,390 ±0.977 keV |
| Binding energy | 8,685 ±0.0121 keV |
| Single-particle energy | 11,460 ±3.447 keV |
| Neutron separation energy | 6,700 ±0.3486 keV |
| Q value for electron capture | -3,856 ±2.819 keV |
| β⁻ decay energy | 1,588 ±1.378 keV |
| β⁻ decay energy with neutron | -8,572 ±0.4659 keV |
82SeSelenium-82
| Classification | z: 34; n: 48; m: 82 |
|---|---|
| Half life | 9.6·1019 ±10 a |
| Natural abundance | 8.82 ±0.15 % |
| Spin/parity | 0+ |
| Decay modes | double β⁻ decay |
| Discovery | 1922 |
| Mass excess | -77,600 ±0.466 keV |
| Binding energy | 8,693 ±0.0057 keV |
| Single-particle energy | 12,340 ±2.663 keV |
| Neutron separation energy | 9,276 ±0.9619 keV |
| Q value for electron capture | -7,489 ±3.758 keV |
| β⁻ decay energy | -95.22 ±1.076 keV |
| β⁻ decay energy with neutron | -7,689 ±1.082 keV |
83SeSelenium-83
| Classification | z: 34; n: 49; m: 83 |
|---|---|
| Half life | 22.3 ±2 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 9/2+ |
| Decay modes | β⁻ decay |
| Discovery | 1937 |
| Mass excess | -75,350 ±3.036 keV |
| Binding energy | 8,658 ±0.0366 keV |
| Single-particle energy | 12,520 ±4.808 keV |
| Neutron separation energy | 5,817 ±3 keV |
| Q value for electron capture | -5,672 ±4.129 keV |
| β⁻ decay energy | 3,673 ±4.839 keV |
| β⁻ decay energy with neutron | -5,914 ±3.187 keV |
84SeSelenium-84
| Classification | z: 34; n: 50; m: 84 |
|---|---|
| Half life | 3.26 ±10 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay |
| Discovery | 1960 |
| Mass excess | -75,950 ±1.961 keV |
| Binding energy | 8,658 ±0.0233 keV |
| Single-particle energy | 13,560 ±3.41 keV |
| Neutron separation energy | 8,678 ±3.614 keV |
| Q value for electron capture | -10,100 ±3.728 keV |
| β⁻ decay energy | 1,835 ±25.76 keV |
| β⁻ decay energy with neutron | -5,006 ±4.271 keV |
85SeSelenium-85
| Classification | z: 34; n: 51; m: 85 |
|---|---|
| Half life | 32.9 ±3 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2)+ |
| Decay modes | β⁻ decay |
| Discovery | 1960 |
| Mass excess | -72,420 ±2.613 keV |
| Binding energy | 8,610 ±0.0307 keV |
| Single-particle energy | 13,840 ±4.102 keV |
| Neutron separation energy | 4,537 ±3.259 keV |
| Q value for electron capture | -9,225 ±4.038 keV |
| β⁻ decay energy | 6,161 ±4.031 keV |
| β⁻ decay energy with neutron | -2,702 ±25.86 keV |
86SeSelenium-86
| Classification | z: 34; n: 52; m: 86 |
|---|---|
| Half life | 14.3 ±3 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay |
| Discovery | 1973 |
| Mass excess | -70,510 ±2.52 keV |
| Binding energy | 8,581 ±0.0293 keV |
| Single-particle energy | 14,600 ±3.971 keV |
| Neutron separation energy | 6,160 ±3.623 keV |
| Q value for electron capture | -11,550 ±4.272 keV |
| β⁻ decay energy | 5,129 ±3.971 keV |
| β⁻ decay energy with neutron | 0.9851 ±3.971 keV |
87SeSelenium-87
| Classification | z: 34; n: 53; m: 87 |
|---|---|
| Half life | 5.5 ±14 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3/2+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1968 |
| Mass excess | -66,430 ±2.241 keV |
| Binding energy | 8,529 ±0.0258 keV |
| Single-particle energy | 14,750 ±4.108 keV |
| Neutron separation energy | 3,994 ±3.365 keV |
| Q value for electron capture | -10,810 ±3.733 keV |
| β⁻ decay energy | 7,465 ±3.876 keV |
| β⁻ decay energy with neutron | 1,134 ±3.8 keV |
88SeSelenium-88
| Classification | z: 34; n: 54; m: 88 |
|---|---|
| Half life | 1.53 ±6 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1970 |
| Mass excess | -63,890 ±3.357 keV |
| Binding energy | 8,495 ±0.0382 keV |
| Single-particle energy | 15,550 ±4.486 keV |
| Neutron separation energy | 5,529 ±4.03 keV |
| Q value for electron capture | -13,440 ±200 keV |
| β⁻ decay energy | 6,831 ±4.612 keV |
| β⁻ decay energy with neutron | 1,936 ±4.612 keV |
89SeSelenium-89
| Classification | z: 34; n: 55; m: 89 |
|---|---|
| Half life | 0.43 ±5 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (5/2+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1971 |
| Mass excess | -59,000 ±3.729 keV |
| Binding energy | 8,435 ±0.0419 keV |
| Single-particle energy | 15,830 ±200 keV |
| Neutron separation energy | 3,179 ±5.012 keV |
| Q value for electron capture | -12,470 ±300 keV |
| β⁻ decay energy | 9,281 ±4.951 keV |
| β⁻ decay energy with neutron | 3,652 ±4.89 keV |
90SeSelenium-90
| Classification | z: 34; n: 56; m: 90 |
|---|---|
| Half life | 195 ± ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1994 |
| Mass excess | -55,810 ±329.7 keV |
| Binding energy | 8,395 ±3.663 keV |
| Single-particle energy | 16,550 ±446 keV |
| Neutron separation energy | 4,879 ±329.7 keV |
| Q value for electron capture | -14,820 ±518.3 keV |
| β⁻ decay energy | 8,200 ±329.7 keV |
| β⁻ decay energy with neutron | 4,402 ±329.7 keV |
91SeSelenium-91
| Classification | z: 34; n: 57; m: 91 |
|---|---|
| Half life | 0.27 ±5 s |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1975 |
| Mass excess | -50,590 ±433.1 keV |
| Binding energy | 8,334 ±4.759 keV |
| Single-particle energy | 16,870 ±589 keV |
| Neutron separation energy | 2,851 ±544.3 keV |
| Q value for electron capture | -14,090 ±589.5 keV |
| β⁻ decay energy | 10,520 ±433.1 keV |
| β⁻ decay energy with neutron | 5,348 ±433.1 keV |
92SeSelenium-92
| Classification | z: 34; n: 58; m: 92 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Discovery | 1997 |
| Mass excess | -46,730 ±400 keV |
| Binding energy | 8,290 ±4 keV |
| Single-particle energy | 17,510 ±565 keV |
| Neutron separation energy | 4,215 ±589 keV |
| Q value for electron capture | -16,350 ±640.3 keV |
| β⁻ decay energy | 9,509 ±400 keV |
| β⁻ decay energy with neutron | 6,312 ±400 keV |
93SeSelenium-93
| Classification | z: 34; n: 59; m: 93 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1/2+) |
| Discovery | 1997 |
| Mass excess | -40,860 ±400 keV |
| Binding energy | 8,225 ±4 keV |
| Single-particle energy | 17,760 ±640 keV |
| Neutron separation energy | 2,208 ±565 keV |
| β⁻ decay energy | 12,030 ±588 keV |
| β⁻ decay energy with neutron | 7,302 ±400 keV |
94SeSelenium-94
| Classification | z: 34; n: 60; m: 94 |
|---|---|
| Half life | 150 ns |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | β⁻ decay |
| Discovery | 1997 |
| Mass excess | -36,810 ±500 keV |
| Binding energy | 8,180 ±5 keV |
| Neutron separation energy | 4,015 ±640 keV |
| β⁻ decay energy | 10,840 ±539 keV |
| β⁻ decay energy with neutron | 8,016 ±660 keV |
95SeSelenium-95
| Classification | z: 34; n: 61; m: 95 |
|---|---|
| Half life | 392 ns |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission; β⁻ decay with two-neutron emission |
| Discovery | 2010 |
| Mass excess | -30,460 ±500 keV |
| Binding energy | 8,112 ±5 keV |
| Neutron separation energy | 1,728 ±707 keV |
| β⁻ decay energy | 13,390 ±583 keV |
| β⁻ decay energy with neutron | 9,118 ±539 keV |