MCQOPTIONS
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| 1. |
The atomic number of bromine is 35 and its atomic weight is 79. Two isotopes of bromine are present in equal amounts. Which of the following statements represents the correct number of neutrons [NCERT 1983] |
| A. | First isotope 34 Second isotope 36 |
| B. | First isotope 44 Second isotope 46 |
| C. | First isotope 45 Second isotope 47 |
| D. | First isotope 79 Second isotope 81 |
| Answer» C. First isotope 45 Second isotope 47 | |