Of the following pairs of species which one will have the same electronic configuration for both members?
$L i^{+}$ and $Na^{+}$
$He$ and $Ne^{+}$
$H$ and $Li$
$C$ and $N^{+}$
A heavy nucleus at rest breaks into two fragments which fly off with velocities in the ratio $8 : 1$. The ratio of radii of the fragments is
The force acting between proton and proton inside the nucleus is
For the decay of nucleus, the possible reason which is not true
Mark the correct statement
A reaction between a proton and $_8{O^{18}}$ that produces $_9{F^{18}}$ must also liberate