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28. A certain radioactive material ZXA starts emitting and particles successively such that the end product is Z-3YA-8. The number of and particles emitted are - (1) 4 and 3 respectively (2) 2 and 1 respectively (3) 3 and 4 respectively (4) 1 and 2 respectively

28. A certain radioactive material ZXA starts emitting
and particles successively such that the end product is Z-3YA-8. The number of  and  particles emitted are -
(1) 4 and 3 respectively
(2) 2 and 1 respectively
(3) 3 and 4 respectively
(4) 1 and 2 respectively

Grade:12th pass

2 Answers

jitendra
18 Points
6 years ago
28. A certain radioactive material ZXA starts emitting
and particles successively such that the end product is Z-3YA-8. The number of  and  particles emitted are -
(1) 4 and 3 respectively
(2) 2 and 1 respectively
(3) 3 and 4 respectively
(4) 1 and 2 respectively
Rishabh Ranjan
63 Points
6 years ago
Answer is 2 alpha particles and 1 beta particle.
ZXA – 2 2He4 ----------> Z-4XA-8 – -1B0 ----------> Z-3XA-8
Therefore, 2 alpha particles and 1 beta particle are emitted.

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