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| isotope | |||
| isotope One or two or more atoms with the same atomic number that contain different numbers of neutrons | |||
| isotoop: 41 phrases in 10 subjects |
| Chemistry | 1 |
| Earth sciences | 5 |
| Energy industry | 1 |
| Environment | 1 |
| General | 6 |
| Health care | 2 |
| Medical | 6 |
| Natural sciences | 3 |
| Nuclear physics | 3 |
| Physical sciences | 13 |