Q. A radioactive element $_{92}^{222} X$ emits two $α$ -particles, one electron and two positrons. The product nucleus is represented by $_{p}^{234} Y$ . The value of $P$ is ___

1675 222 JEE MainJEE Main 2023Nuclei Report Error

Answer: 87

Solution:

$P = 92 - 2 - 2 + 1 - 1 - 1$
$P = 92 - 5$
$P = 87$