Given: Number of protons = 13; Number of electrons = 13; Number of neutrons = 14; Calculate the mass number of the element.

Asked by Topperlearning User | 14th May, 2014, 06:35: AM

Expert Answer:

Mass number is the sum of neutrons and protons present in a nucleus.

Mass no. = No. of protons + No. of neutrons

             = 13 + 14

             = 27

Therefore, its mass number is 27.

Answered by  | 14th May, 2014, 08:35: AM