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Isotopen van broom
Es Chemisches ElementBrom (Br), mit a Atommasse ab 79.904(1) Sie, besitzt 2 Stall Isotope: 79Marke 81Br, die ungefähr gleich vorkommen. Die anderen 30 Radioisotope sind instabil und haben eine relativ kurze halbes Leben (die meisten weniger als eins zweite).
Das kurzlebige Isotop von Brom ist 69Br, mit einer Halbwertszeit von weniger als 24 Nanosekunden. Die langlebigste ist 77Br, mit einer Halbwertszeit von etwa 57 Stunde.
Überblick
| Nuklid | Z (p) | N (nein) | Isotope Masse (u) | halbes Leben | Radioaktiver Zerfall | VP | Kernspin | Isotopenverhältnis (Molenbruch) | Natürliches Vorkommen (Molbruch) |
|---|---|---|---|---|---|---|---|---|---|
| Anregungsenergie | |||||||||
| 66Bruder | 35 | 31 | p | 65Se | |||||
| 67Bruder | 35 | 32 | 66,96479(54) | p | 66Se | 1/2− | |||
| 68Bruder | 35 | 33 | 67,95852(38) | < 1,2 µs | p | 67Se | 3 | ||
| 69Bruder | 35 | 34 | 68,95011(11) | < 24 ns | p | 68Se | 1/2− | ||
| 70Bruder | 35 | 35 | 69,94479(33) | 79,1(8) ms | β | 70Se | 0 | ||
| 70mBruder | 2292,2(8) keV | 2.2(2) s | β | 70Se | (9) | ||||
| ES | 70Bruder | ||||||||
| 71Bruder | 35 | 36 | 70,93874(61) | 21,4(6) s | β | 71Se | 5/2− | ||
| 72Bruder | 35 | 37 | 71,93664(6) | 78,6(24) s | β | 72Se | 1 | ||
| 72mBruder | 100,92(3) keV | 10,6(3) Sek. | IT (> 99,9 %) | 72Bruder | 1− | ||||
| β (< 0,1%) | 72Se | ||||||||
| 73Bruder | 35 | 38 | 72,93169(5) | 3,4 (2) Minuten | β | 73Se | 1/2− | ||
| 74Bruder | 35 | 39 | 73,929891(16) | 25,4(3) min | β | 74Se | (0−) | ||
| 74mBruder | 13,58(21) keV | 46(2) Minuten | β | 74Se | 4 | ||||
| 75Bruder | 35 | 40 | 74,925776(15) | 96,7(13) min | β | 75Se | 3/2− | ||
| 76Bruder | 35 | 41 | 75,924541(10) | 16,2(2) Stunden | β | 76Se | 1− | ||
| 76mBruder | 102,58(3) keV | 1,31(2) s | IT (99,4%) | 76Bruder | (4) | ||||
| β (0,6%) | 76Se | ||||||||
| 77Bruder | 35 | 42 | 76,921379(3) | 57.036(6) Stunden | β | 77Se | 3/2− | ||
| 77mBruder | 105,86(8) keV | 4,28(10) min | ES | 77Bruder | 9/2 | ||||
| 78Bruder | 35 | 43 | 77,921146(4) | 6,46(4) min | β (99,99%) | 78Se | 1 | ||
| β− (,01%) | 78kr | ||||||||
| 78mBruder | 180,82(13) keV | 119.2(10) µs µ | (4) | ||||||
| 79Bruder | 35 | 44 | 78,9183371(22) | stabil | 3/2− | 0,5069(7) | |||
| 79mBruder | 207,61(9) keV | 4.86(4) s | ES | 79Bruder | (9/2) | ||||
| 80Bruder | 35 | 45 | 79,9185293(22) | 17,68 (2) Minuten | β− (91,7%) | 80kr | 1 | ||
| β (8,3%) | 80Se | ||||||||
| 80mBruder | 85,843(4) keV | 4.4205(8) Stunden | ES | 80Bruder | 5− | ||||
| 81Bruder | 35 | 46 | 80,9162906(21) | stabil | 3/2− | 0,4931(7) | |||
| 81mBruder | 536,20(9) keV | 34,6(28) µs | 9/2 | ||||||
| 82Bruder | 35 | 47 | 81,9168041(21) | 35.282(7) Stunden | β− | 82kr | 5− | ||
| 82mBruder | 45,9492(10) keV | 6,13(5) min | ES | 82Bruder | 2- | ||||
| β− | 82kr | ||||||||
| 83Bruder | 35 | 48 | 82,915180(5) | 2,40(2) Stunden | β− | 83kr | 3/2− | ||
| 83mBruder | 3068,8(6) keV | 700(100) ns | (19/2−) | ||||||
| 84Bruder | 35 | 49 | 83,916479(16) | 31,80(8) Minuten | β− | 84kr | 2− | ||
| 84m1Bruder | 320(10) keV | 6,0 (2) Minuten | β− | 84kr | 6− | ||||
| 84m2Bruder | 408.2(4) keV | < 140 ns | 1 | ||||||
| 85Bruder | 35 | 50 | 84,915608(21) | 2,90(6) min | β− | 85kr | 3/2− | ||
| 86Bruder | 35 | 51 | 85,918798(12) | 55,1(4) s | β− | 86kr | (2−) | ||
| 87Bruder | 35 | 52 | 86,920711(19) | 55,65(13) s | β− (97,48%) | 87kr | 3/2− | ||
| β−, nein (2,52%) | 86kr | ||||||||
| 88Bruder | 35 | 53 | 87,92407(4) | 16.29(6) s | β− (93,42%) | 88kr | (2-) | ||
| β−, n (6,48 %) | 87kr | ||||||||
| 88mBruder | 272,7(3) keV | 5,4(7) µs | |||||||
| 89Bruder | 35 | 54 | 88,92639(6) | 4.40(3) s | β− (86,2%) | 89kr | (3/2−, 5/2−) | ||
| β−, n (13,8%) | 88kr | ||||||||
| 90Bruder | 35 | 55 | 89,93063(8) | 1,91(1) s | β− (74,8%) | 90kr | |||
| β−, n (25,2%) | 89kr | ||||||||
| 91Bruder | 35 | 56 | 90,93397(8) | 541(5) ms | β− (80%) | 91kr | 3/2− | ||
| β−, n (20%) | 90kr | ||||||||
| 92Bruder | 35 | 57 | 91,93926(5) | 0,343(15) s | β− (66,9%) | 92kr | (2−) | ||
| β−, n (33,1%) | 91kr | ||||||||
| 93Bruder | 35 | 58 | 92,94305(32) | 102(10) ms | β− (89%) | 93kr | 3/2− | ||
| β−, n (11 %) | 92kr | ||||||||
| 94Bruder | 35 | 59 | 93,94868(43) | 70(20) ms | β− (70%) | 94kr | |||
| β−, n (30%) | 93kr | ||||||||
| 95Bruder | 35 | 60 | 94,95287(54) | 50ms | 3/2− | ||||
| 96Bruder | 35 | 61 | 95,95853(75) | 20ms | |||||
| 97Bruder | 35 | 62 | 96,96280(86) | 10 ms | 3/2− | ||||
Übersicht der Isotope pro Element
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