Question

If there are 3 electron 4 neutron and 3 proton are then what would be the atomic number and what would be iys mass numbers.

Answer 1

Explanation :

Atomic Number is 3 and Mass number is 7

Tip : The Atomic Number is ALWAYS the same as the Number of Electrons or Protons.

If Number of Electrons or Protons is 3 then the atomic number will also be 3.

Mass Number  = Protons + Neutrons

Mass Number = 3 + 4

Hence mass Number is 7.

Glad to help.