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An atom of mass number 15 and atomic num...

An atom of mass number `15` and atomic number `7` captures an `alpha-`particle and then emits a proton. The mass number and atomic number of the resulting product will respectively be.

A

14 and 2

B

15 and 3

C

16 and 4

D

18 and 8

Text Solution

Verified by Experts

The correct Answer is:
D
(d) `._7X^15 + ._2 He^4 rarr ._1P^1 + ._8 Y^18`.
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