Silizium Si Kernladungszahl Z=14 (p=14) |
| Si(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. | Si28 | 14 | 27.97692653 | 27.96924641 | 92.23% | 0+ | | stabil | | | -21.4928E6 | 236.537E6 | 0.177#σ(n.γ) |
2. | Si29 | 15 | 28.97649475 | 28.96881463 | 4.683% | 1/2+ | | stabil | | | -21.895E6 | 245.011E6 | 0.119#σ(n.γ) |
3. | Si30 | 16 | 29.9737702 | 29.96609008 | 3.087% | 0+ | | stabil | | | -24.4329E6 | 255.62E6 | 0.107#σ(n.γ) |
4. | Si27 | 13 | 26.98670523 | 26.97902511 | | 5/2+ | radioakt. | 4.16 | K/β+=100 | 4.821E6 | -12.384E6 | 219.357E6 | |
5. | Si26 | 12 | 25.99232996 | 25.98464984 | | 0+ | radioakt. | 2.234 | K/β+=100 | 5.066E6 | -7.1446E6 | 206.046E6 | |
6. | Si25 | 11 | 25.00410556 | 24.99642544 | | 5/2+ | radioakt. | 220E-3 | K/β+=<100; Kp=>0 | 12.741E6(K/β+); 10.468E6(Kp) | 3.8243E6 | 187.006E6 | |
7. | Si24 | 10 | 24.01154489 | 24.00386478 | | 0+ | radioakt. | 140E-3 | K/β+=62; Kp=38 | 10.810E6(K/β+); 8.938E6(Kp) | 10.754E6 | 172.005E6 | |
8. | Si23 | 9 | 23.02552029 | 23.01784017 | | 5/2+ | radioakt. | 42.3E-3 | K=25.5; β+p=71; β+2p=3.6 | 17.003E6(K); 16.879E6(β+p); 11.378E6(β+2p) | 23.772E6 | 150.916E6 | |
9. | Si22 | 8 | 22.03452948 | 22.02684936 | | 0+ | radioakt. | 29E-3 | K/β+=68; Kp=32 | 13.981E6(K/β+); 13.965E6(Kp) | 32.164E6 | 134.452E6 | |
10. | Si31 | 17 | 30.97536323 | 30.96768312 | | 3/2+ | radioakt. | 9438 | ß-=100 | 1.491E6 | -22.949E6 | 262.207E6 | 73E-3#σ(n.γ) |
11. | Si32 | 18 | 31.97414906 | 31.96646894 | | 0+ | radioakt. | 153a | ß-=100 | 0.225E6 | -24.08E6 | 271.409E6 | |
12. | Si33 | 19 | 32.97800093 | 32.97032081 | | 3/2+ | radioakt. | 6.11 | ß-=100 | 5.845E6 | -20.492E6 | 275.893E6 | |
13. | Si34 | 20 | 33.97857549 | 33.97089537 | | 0+ | radioakt. | 2.77 | ß-=100 | 4.6E6 | -19.9568E6 | 283.429E6 | |
14. | Si35 | 21 | 34.98458358 | 34.97690346 | | | radioakt. | 780E-3 | ß-=100 | 10.497E6 | -14.3603E6 | 285.904E6 | |
15. | Si36 | 22 | 35.98660002 | 35.9789199 | | 0+ | radioakt. | 0.45 | ß-=<100; β−n=>0 | 7.769E6(β−); 4.304E6(β−n) | -12.482E6 | 292.097E6 | |
16. | Si37 | 23 | 36.99293608 | 36.98525596 | | 7/2- | radioakt. | 90E-3 | ß-=83; β−n=17 | 12.414E6(ß-); 5.6E6(β−n) | -6.58E6 | 294.266E6 | |
17. | Si38 | 24 | 37.9956339 | 37.98795378 | | 0+ | radioakt. | | ß-=100; β−n=>0 | 10.69E6(ß-); 6.856E6(β−n) | -4.067E6 | 299.824E6 | |
18. | Si39 | 25 | 39.00206979 | 38.99438967 | | | radioakt. | 47.5E-3 | ß-=<100; β−n=>0 | 14.801E6(ß-); 8.614E6(β−n) | 1.928E6 | 301.901E6 | |
19. | Si40 | 26 | 40.00586907 | 39.99818895 | | 0+ | radioakt. | 33E-3 | ß-=<100; β−n=>0 | 13.547E6(ß-); 10.269E6(β−n) | 5.467E6 | 306.433E6 | |
20. | Si41 | 27 | 41.01456005 | 41.00687993 | | | radioakt. | 20E-3 | ß-=<100; β−n=>0 | 18.839(ß-); 13.598E6(β−n) | 13.5626E6 | 306.409E6 | |
21. | Si42 | 28 | 42.01978971 | 42.01210959 | | 0+ | radioakt. | 12.5E-3 | ß-=<100; β−n=>0 | 17.495E6(ß-); 15.639E6(β−n) | 18.434E6 | 309.609E6 | |
22. | Si43 | 29 | 43.02866041 | 43.02098029 | | | radioakt. | 60E-9 | ß-=<100; β−n=>0 | 20.932E6(ß-); 17.687E6(β−n) | 26.697E6 | 309.417E6 | |
23. | Si44 | 30 | 44.03525949 | 44.02757937 | | 0+ | radioakt. | 360E-9 | ß-=<100; β−n=>0 | 20.744E6(ß-); 19.008E6(β−n) | 32.844E6 | 311.341E6 | |