Question

If an atom of the element contains 17 electrons and I neutrons find the mass number of the element.

Answer 1

Answer:

no. of electrons = no. of protons of the atom

Explanation:

no.of protons= 17 , no.of neutrons = 1

atomic mass number = p + n

= 17 + 1 = 18 u

The atomic mass number of the atom is 18 u.