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Question
Which of the following represents a pair of isotopes?Atomic Number Mass Number
| A) | I | 17 | 36 |
| II | 18 | 36 | |
| B) | I | 7 | 15 |
| II | 8 | 15 | |
| C) | I | 17 | 35 |
| II | 17 | 37 | |
| D) | I | 17 | 37 |
| 18 | 18 | 38 | |
| E) | I | 7 | 16 |
| II | 8 | 17 |
Answer
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