An atom of carbon has 6 protons Its mass number is 12 How many neutrons are present in an atom of ca...........

General Science (NDA) Chemistry

An atom of carbon has 6 protons. Its mass number is 12. How many neutrons are present in an atom of carbon?

We know that,
Mass no. (A) = No. of proton (p) + no. of neutron (n)
12 = 6 + n => n = 6
Mass number determines the atomic mass of atoms.

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