in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 29 | Cu | 63 | 62.929 6011(15) | 69.17(3) | 63.546(3) | r | ||
| 65 | 64.927 7937(19) | 30.83(3) | ||||||
| 35 | Br | 79 | 78.918 3376(20) | 50.69(7) | 79.904(1) | |||
| 81 | 80.916 291(3) | 49.31(7) | ||||||
| ||||||||
