Answer :
Answer:
c
Explanation:
well! a and d are out of topics because proton and electron must be same so do the answer c and d are differ in neutron so u can find it by subtracting mass to atomic number have a nice day !
Answer:
c
Explanation:
well! a and d are out of topics because proton and electron must be same so do the answer c and d are differ in neutron so u can find it by subtracting mass to atomic number have a nice day !