in choosing which isotopes to search.
| Isotope | Relative Atomic Mass |
Isotopic Composition |
Standard Atomic Weight |
Notes | ||||
|---|---|---|---|---|---|---|---|---|
 | ||||||||
| 29 | Cu | 63 | 62.929 597 5(6) | 0.6915(15) | 63.546(3) | r | ||
| 65 | 64.927 789 5(7) | 0.3085(15) | ||||||
| 35 | Br | 79 | 78.918 3371(22) | 0.5069(7) | 79.904(1) | |||
| 81 | 80.916 2906(21) | 0.4931(7) | ||||||
| ||||||||
