MCQOPTIONS
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| 1. |
The numbers of protons, electrons and neutrons in a molecule of heavy water are respectively: |
| A. | 8, 10, 11 |
| B. | 10, 10, 10 |
| C. | 10, 11, 10 |
| D. | 11, 10, 10 |
| Answer» C. 10, 11, 10 | |