WikiDer > Isotope von Natrium
Isotopen van natrium
Es Chemisches ElementNatrium (Nachher), mit a Atommasse ab 22.98976928(2) Sie, kennt insgesamt 13 Isotope, davon nur 23Nach dem ist stabil. 22Nach dem und 24Nach dem sind die einzigen natürlich vorkommenden radioaktiven Isotope. Alle anderen Isotope können nur künstlich gewonnen werden.
Überblick
| Nuklid | Z (p) | N (nein) | Isotope Masse (u) | halbes Leben | Radioaktiver Zerfall | VP | Kernspin | Isotopenverhältnis (Molenbruch) | Natürliches Vorkommen (Molbruch) |
|---|---|---|---|---|---|---|---|---|---|
| Anregungsenergie | |||||||||
| 18Nach dem | 11 | 7 | 18,02597(5) | 1,3(4) × 10−21 so | p (> 99,9%) | 17Ne | (1−) | ||
| β (< 0,1%) | 18Ne | ||||||||
| 19Nach dem | 11 | 8 | 19,013877(13) | < 40 ns | p | 18Ne | (5/2) | ||
| 20Nach dem | 11 | 9 | 20,007351(7) | 447,9(23) ms | β (75%) | 20Ne | 2 | ||
| β, α (25%) | 16Ö | ||||||||
| 21Nach dem | 11 | 10 | 20,9976552(8) | 22.49(4) s | β | 21Ne | 3/2 | ||
| 22Nach dem | 11 | 11 | 21,9944364(4) | 2.6027(10) Jahre | β | 22Ne | 3 | Spuren | |
| 22mNach dem | 583.03(9) keV | 244(6) ns | 1 | ||||||
| 23Nach dem | 11 | 12 | 22,9897692809(29) | stabil | 3/2 | 1,0000 | |||
| 24Nach dem | 11 | 13 | 23,99096278(8) | 14.9590(12) Stunden | β− | 24mg | 4 | Spuren | |
| 24mNach dem | 472.207(9) keV | 20,20(7) ms | ES (99,95%) | 24Nach dem | 1 | ||||
| β− (0,05%) | 24mg | ||||||||
| 25Nach dem | 11 | 14 | 24,9899540(13) | 59,1(6) s | β− | 25mg | 5/2 | ||
| 26Nach dem | 11 | 15 | 25,992633(6) | 1.077(5) s | β− | 26mg | 3 | ||
| 27Nach dem | 11 | 16 | 26,994077(4) | 301(6) ms | β− (99,87%) | 27mg | 5/2 | ||
| β−, nein (,13%) | 26mg | ||||||||
| 28Nach dem | 11 | 17 | 27,998938(14) | 30,5(4) ms | β− (99,421%) | 28mg | 1 | ||
| β−, n (0,579%) | 27mg | ||||||||
| 29Nach dem | 11 | 18 | 29,002861(14) | 44,9(12) ms | β− (74,09%) | 29mg | 3/2 | ||
| β−, n (25,91 %) | 28mg | ||||||||
| 30Nach dem | 11 | 19 | 30,008976(27) | 48,4(17) ms | β− (68,83%) | 30mg | 2 | ||
| β−, n (30,0%) | 29mg | ||||||||
| β−, 2n (1,17%) | 28mg | ||||||||
| β−, | 26Ne | ||||||||
| 31Nach dem | 11 | 20 | 31,01359(23) | 17,0(4) ms | β− (62,05%) | 31mg | (3/2) | ||
| β−, nein | 30mg | ||||||||
| β−, 2n | 29mg | ||||||||
| β−, 3n | 28mg | ||||||||
| 32Nach dem | 11 | 21 | 32,02047(38) | 12,9(7) ms | β− | 32mg | (3−, 4−) | ||
| β−, nein | 31mg | ||||||||
| β−, 2n | 30mg | ||||||||
| 33Nach dem | 11 | 22 | 33,02672(94) | 8,2 (2) ms | β−, n (52,0%) | 32mg | 3/2 | ||
| β− (36,0%) | 33mg | ||||||||
| β−, 2n (12,0%) | 31mg | ||||||||
| 34Nach dem | 11 | 23 | 34,03517(96) | 5,5(10) ms | β−, 2n (50,0%) | 32mg | 1 | ||
| β− (35,0%) | 34mg | ||||||||
| β−, n (15,0%) | 33mg | ||||||||
| 35Nach dem | 11 | 24 | 35,04249(102) | 1,5(5)ms | β− (> 99,9%) | 35mg | 3/2 | ||
| β−, n (< 0,1%) | 34mg | ||||||||
| 36Nach dem | 11 | 25 | 36,05148(102) | < 260 ns | |||||
| 37Nach dem | 11 | 26 | 37,05934(103) | 1ms [>1,5µs] | 3/2 | ||||
Übersicht der Isotope pro Element
Quellen, Anmerkungen und/oder Verweise
|