Argon Ar Kernladungszahl Z=18 (p=18) |
| Ar(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. | Ar40 | 22 | 39.96238312 | 39.95250868 | 99.6% | 0+ | | stabil | | | -35.0399E6 | 343.811E6 | 0.66#σ(n.γ) |
2. | Ar36 | 18 | 35.96754569 | 35.95767125 | 0.3365% | 0+ | | stabil | | | -30.231E6 | 306.716E6 | 5.2#σ(n.γ); 5.5E-3#σ(n.α) |
3. | Ar38 | 20 | 37.96273299 | 37.95285855 | 0.0632% | 0+ | | stabil | | | -34.714E6 | 327.342E6 | 0.8#σ(n.γ) |
4. | Ar39 | 21 | 38.96431324 | 38.95443881 | 1E-13% | 7/2- | radioakt. | 8488878654.275424 | ß-=100 | 0.564681E6 | -33.242E6 | 333.941E6 | 0.59E3#σ(n.γ) |
5. | Ar37 | 19 | 36.96677628 | 36.95690184 | | 3/2+ | radioakt. | 35.04d | K=100 | 0.814E6 | -30.9477E6 | 315.504E6 | 69#σ(n.p); 1.97E3#σ(n.α) |
6. | Ar35 | 17 | 34.9752576 | 34.96538316 | | 3/2+ | radioakt. | 1.775 | K/β+=100 | 5.966E6 | -23.0474E6 | 291.462E6 | |
7. | Ar34 | 16 | 33.98027126 | 33.97039683 | | 0+ | radioakt. | 844.5E-3 | K/β+=100 | 6.062E6 | -18.3772E6 | 278.72E6 | |
8. | Ar33 | 15 | 32.98992586 | 32.98005142 | | 1/2+ | radioakt. | 173E-3 | K/β+=61.3; Kp=38.7 | 11.619E6(K/β+); 9.342E6(Kp) | -9.384E6 | 261.655E6 | |
9. | Ar32 | 14 | 31.9976382 | 31.98776376 | | 0+ | radioakt. | 98E-3 | K/β+=57; Kp=43 | 11.13E6(K/β+); 9.555E6(Kp) | -2.2E6 | 246.4E6 | |
10. | Ar31 | 13 | 31.01212353 | 31.0022491 | | 5/2+ | radioakt. | 14.4E-3 | K/β+=29.39; Kp=63; K2p=7.2; K3p=1.1E-3; Kα=0.03; Kpα=0.38 | 18.36E6(K/β+); 18.067E6(Kp); 13.667E6(K2p); 10.919E6(K3p); 9.585E6(Kα); 8.724E6(Kpα) | 11.293E6 | 224.836E6 | |
11. | Ar30 | 12 | 30.02155999 | 30.01168555 | | 0+ | radioakt. | 20E-9 | p =100 | -0.349E6 | 20.083E6 | 207.975E6 | |
12. | Ar41 | 23 | 40.96450058 | 40.95462614 | | 7/2- | radioakt. | 6560.4 | ß-=100 | 2.492E6 | -33.0675E6 | 349.91E6 | 0.5#σ(n.γ) |
13. | Ar42 | 24 | 41.96304571 | 41.95317127 | | 0+ | radioakt. | 32.9a | ß-=100 | 0.599E6 | -34.4227E6 | 359.336E6 | |
14. | Ar43 | 25 | 42.96563607 | 42.95576163 | | 5/2− | radioakt. | 322 | ß-=100 | 4.583E6 | -32.0098E6 | 364.994E6 | |
15. | Ar44 | 26 | 43.96492398 | 43.95504954 | | 0+ | radioakt. | 712 | ß-=100 | 3.136E6 | -32.6731E6 | 373.729E6 | |
16. | Ar45 | 27 | 44.96804059 | 44.95816615 | | 5/2− | radioakt. | 21.48 | ß-=100 | 6.838E6 | -29.77E6 | 378.897E6 | |
17. | Ar46 | 28 | 45.96809416 | 45.95821972 | | 0+ | radioakt. | 8.4 | ß-=100 | 5.698E6 | -29.7201E6 | 386.919E6 | |
18. | Ar47 | 29 | 46.97218769 | 46.96231325 | | 3/2− | radioakt. | 1.23 | ß-=100 | 9.789E6 | -25.907E6 | 391.177E6 | |
19. | Ar48 | 30 | 47.97453983 | 47.96466539 | | 0+ | radioakt. | 475E-3 | ß-<100; β−n>0 | 8.408E6(ß-); 3.909E6(β−n) | -23.716E6 | 397.057E6 | |
20. | Ar49 | 31 | 48.98051947 | 48.97064503 | | 3/2− | radioakt. | 170E-3 | ß-=>0; β−n=65 | 12.173E6(ß-); 5.907E6(β−n) | -18.146E6 | 399.559E6 | |
21. | Ar50 | 32 | 49.98443039 | 49.97455595 | | 0+ | radioakt. | <170E−9 | ß-=>0; β−n=35 | 10.849E6(ß-); 7.745E6(β−n) | -14.503E6 | 403.987E6 | |
22. | Ar51 | 33 | 50.99162958 | 50.98175514 | | 5/2− | radioakt. | <200E-9 | ß-<100; β−n>0 | 14.205E6(ß-); 9.484E6(β−n) | -7.797E6 | 405.352E6 | |
23. | Ar52 | 34 | 51.99678044 | 51.986906 | | 0+ | radioakt. | 10E-3 | ß-<100; β−n>0 | 13.2E6(ß-); 10.932E6(β−n) | -2.999E6 | 408.626E6 | |
24. | Ar53 | 35 | 53.00494045 | 52.99506601 | | 5/2− | radioakt. | 3E-3 | ß-=<100; β−n=>0 | 16.6E6(ß-); 12.73E6(β−n) | 4.602E6 | 409.096E6 | |