What is the mass number of a Calcium atom if it has 20 neutrons?

Mass number will always give the idea of how many protons and neutrons its nucleus contains.

Mass number = no. of protons + no. of neutrons n atom of calcium, Ca , has 20 neutrons in its nucleus.

Therefore, the mass number of this calcium isotope will be

mass number = A = 20 protons + 20 neutrons = 40

This will be calcium-40 isotope, 40 Ca 20

Leave a Comment

Your email address will not be published. Required fields are marked *


Free Class