MCQOPTIONS
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MCQOPTIONS
| 1. |
A radioactive nucleus (initial mass number A and atomic number Z emits 3 \[\alpha -\]particles and 2 positrons. The ratio of number of neutrons to that of protons in the final nucleus will be |
| A. | \[\frac{A-Z-8}{Z-4}\] |
| B. | \[\frac{A-Z-4}{Z-8}\] |
| C. | \[\frac{A-Z-12}{Z-4}\] |
| D. | \[\frac{A-Z-4}{Z-2}\] |
| Answer» C. \[\frac{A-Z-12}{Z-4}\] | |