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Grade: 12th pass
        
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
8 months ago

Answers : (2)

jitendra
18 Points
							
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
8 months ago
Rishabh Ranjan
63 Points
							
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.
8 months ago
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