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ENTRANCE TEST – 2013 :: Discussion
| 30. | Emission of alpha decay from a radioactive substance causes: | |
| A. | Decreases in 'Z' by 4 and decreases in 'A' by 2 | |
| B. | Decreases in 'A' by 1 and 'Z' remains same | |
| C. | Decreases in 'Z' by 1 and 'A' remains same | |
| D. | Decreases in 'A' by 4 and decreases in 'Z' by 2 | |
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