The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emittedby it. The resulting daughter in an:

Options

A. Isobar of parent
B. Isomer of parent
C. Isotone of parent
D. Isotope of parent

Answer

D

Explanation

`""_(Z)X^(A) overset(""_(2)He^(4))rarr ""_(Z-2)Y^(A-4) overset(beta^(-))rarr ""_(Z-1)P^(A- 4) overset(beta^(-))rarr ""_(Z)Q^(A-4)`
Hence, X and Q are isotopes.