Question

If the atomic number of an atom is 19 and mass number is 35 then number of neutron and proton will be. Single choice.

(2 Points)

19 ,35

16 ,19

19 ,16​

Answer 1

Answer:

Since the mass of an atom is concentrated at its nucleus, the nucleon (or mass) number is thus an approximate measure of the mass of the atom. The number of neutrons present in the nucleus of the atom (the neutron number, N) may be deduced by subtracting the proton number (Z) from its nucleon number (A).