The no of the electron must be 8 so that the atom will become electrically neutral. An electrically neutral atom has an equal no of electrons and protons.
The atom consists of matter that may be split without releasing electrical charges.
It's also the smallest unit of matter with chemical element features. As a result, the atom is the fundamental unit of science.
In the nucleus proton and the neutron is exists. The condition of the atom to be electrically neutral is that the number of the proton and electron should be the same.
In the given condition the number of protons is 8.
Hence the no of the electron must be 8. So the atom will become electrically neutral.
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