Natrium Na Kernladungszahl Z=11 (p=11) |
| Na(n+p) | n | Schwere Isotop | Schwere Kern | Häufig- keit | Spin/ Parität | Stabilität | Halbwerts- zeit [s] | Zerfalls- arten | Zerfalls- energie [eV] | Defekt- energie [eV] | Bindungs- energie [eV] | Wirkungsquer- schnitt [barn] |
|
1. | Na23 | 12 | 22.98976923 | 22.98373485 | 100% | 3/2+ | | stabil | | | -9.5299E6 | 186.565E6 | 0.57#σ(n.γ); 0.4#σ(n.it) |
2. | Na22 | 11 | 21.99443689 | 21.98840252 | | 3+ | radioakt. | 2.6019a | K/β+=100 | 2.842E6 | -5.182E6 | 174.145E6 | 2.83E3#σ(n.γ) |
3. | Na21 | 10 | 20.99765538 | 20.991621 | | 3/2+ | radioakt. | 22.49 | K/β+=100 | 3.548E6 | -2.184E6 | 163.076E6 | |
4. | Na20 | 9 | 20.00735131 | 20.00131693 | | 2+ | radioakt. | 447.9E-3 | K/β+=79.95; Kα=20.5 | 13.89E6(K/β+); 9.16E6(Kα) | 6.8477E6 | 145.973E6 | |
5. | Na24 | 13 | 23.99096291 | 23.98492853 | | 4+ | radioakt. | 53852.4 | ß-=100 | 5.516E6 | -8.418E6 | 193.524E6 | |
6. | Na25 | 14 | 24.98995399 | 24.98391961 | | 5/2+ | radioakt. | 59.1 | ß-=100 | 3.835E6 | -9.3578E6 | 202.535E6 | |
7. | Na26 | 15 | 25.99263302 | 25.98659864 | | 3+ | radioakt. | 1.077 | ß-=100 | 9.352E6 | -6.8623E6 | 208.111E6 | |
8. | Na28 | 17 | 27.99893805 | 27.99290367 | | 1+ | radioakt. | 30.5E6 | ß-=99.42; β−n=0.58 | 14.029E6(β−); 5.525E6(β−n) | -0.9892E6 | 218.38E6 | |
9. | Na29 | 18 | 29.002861 | 28.99682662 | | 3/2 | radioakt. | 44.9E-3 | ß-=78.5; β−n=21.5 | 13.284E6(β−); 9.612E6(β−n) | 2.665E6 | 222.798E6 | |
10. | Na30 | 19 | 30.0089759 | 30.00294152 | | 2+ | radioakt. | 48E-3 | β−=68.85; β−n=30; β−2n=1.15; β−α=5.5E−5 | 17.271E6(β−); 10.909E6(β−n); 7.237E6(β−2n); 5.740E6(β−α) | 8.361E6 | 225.173E6 | |
11. | Na31 | 20 | 31.01358463 | 31.00755025 | | 3/2+ | radioakt. | 17.0E-3 | β−=61.93; β−n=37; β−2n=0.9 | 15.871E6(β−); 13.493E6(β−n); ? | 12.654E6 | 228.951E6 | |
12. | Na32 | 21 | 32.02046605 | 32.01443167 | | 3- | radioakt. | 13.2E-3 | β−=68; β−n=24; β−2n=8 | 20.019E6(β−); 14.21E6(β−n); 11.831E6(β−2n) | 19.064E6 | 230.612E6 | |
13. | Na33 | 22 | 33.02671944 | 33.02068506 | | 3/2+ | radioakt. | 8.2E-3 | β−=40; β−n=47; β−2n=13 | 19.995E6(β−); 17.772E6(β−n); 11.963E6(β−2n) | 24.889E6 | 232.859E6 | |
14. | Na34 | 23 | 34.03517038 | 34.029136 | | (1/2−) | radioakt. | 5.5 | β−=85; β−n=15 | 23.953E6(β−); 19.796E6(β−n) | 32.761E6 | 233.058E6 | |
15. | Na35 | 24 | 35.04249303 | 35.03645865 | | () | radioakt. | 1.5E-3 | ß-=50; β−n=50 | 23.43E6(β−); 22.703E6(β−n) | 39.582E6 | 234.308E6 | |
16. | Na36 | 25 | 36.05147966 | 36.04544529 | | | radioakt. | 100E-9 | n=100 | 0.3E6 | 47.953E6 | 234.009E6 | |
17. | Na37 | 26 | 37.05934016 | 37.05330578 | | 3/2+ | radioakt. | 1E-3 | ß-=<100; β−n=>0 | -0.749E6(ß-); 25.78E6(ß-n) | 55.275E6 | 234.758E6 | |
18. | Na24+1 | 13 | 23.99096291 | 23.98492853 | | 1+ | radioakt. | 20.20E-3 | IT=99.95; β−=0.05 | 0.472E6(IT); 5.988E6(β−) | -8.418E6 | 193.524E6 | |