A.1.51eV | B.1.89eV | C.10.2eV | D.12.09eV |
E1 |
n2 |
23290 |
20882 |
A.铅核比钍核少24个中子 |
B.衰变过程中共有4次α衰变和8次β衰变 |
C.铅核比钍核少8个核子 |
D.衰变过程中共有6次α衰变和4次β衰变 |
A.42.8eV (光子) | B.43.2eV(电子) |
C.41.0eV(电子) | D.54.4eV (光子) |
A.E-h
| B.E+h
| C.E-h
| D.E+h
|
A.10.2eV | B.45.5eV | C.48.4eV | D.51.0eV |
E1 |
n2 |
A.13.6 eV | B.40.8 eV | C.48.0 eV | D.51.0 eV |
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