Question

what is no. of proton and neutron in it ​

Answer 1

Protons and neutrons are in the center (nucleus) of the atom. ... Proton—positive; electron—negative; neutron—no charge. The charge on the proton and electron are exactly the same size but opposite. The same number of protons and electrons exactly cancel one another in a neutral atom.

Answer 2

in what...??? complete your question