Question

In the nuclear transmutation,

${}_4^{9}Be+X{\to }_4^{8}Be+Y$,

$X$ and $Y$ are:

• A. $\gamma ,n$
• B. $p,D$
• C. $n,D$
• D. $\gamma ,p$

Answer 1

Answer: (A), (B)

The correct options are
A $p,D$
B $\gamma ,n$

In the nuclear transmutation, ${}_4^{9}Be+X{\to }_4^{8}Be+Y$, (X, Y) are either $(\gamma ,n)$ or $(p,D)$.

In the given nuclear equation, the atomic number on LHS = the atomic number on RHS.

Hence, the atomic number of $X$ and $Y$ should be equal.

Also, the mass number on LHS is greater than the mass number on RHS by 1 unit.

Hence, the mass number of $Y$ should be greater than the mass number of $X$ by 1.