Comment
Share
Q)

# Deuterium nucleus contains

$\begin{array}{1 1} (a)\;1p+1n \\ (b)\;2p+On \\ (c)\;1p+1e \\ (d)\;2p+2n \end{array}$

Deuterium an isotope of hydrogen , is $_1 H^{2}$
Thus it contains 1 proton and $1(2-1)$ neutron in its nucleus