Answer:
This nucleus then acquires one electron to become electrically neutral.
Explanation:
Fusion :It is nuclear reaction which two or more than smaller nuclei combines together to form heavy nuclear.
A neutron combines with proton in order to make heavy electron that is fusion reaction is taking place.
[tex]^{1}\textrm{n}+^{1}_{1}\textrm{H}\rightarrow ^{2}_1\textrm{H}+[/tex]
The overall charge in the nucleus will be +1.And in order to neutralize this positive charge the nucleus will acquire single electron to become electrically neutral.