Question

Why actual atomic mass is greater than mass number?​

Answer 1

Explanation:

As we know that ,Mass number is basically atomic number means the number given to a certain element on the basis of its properties and similarities with the other elements .

It usually is because the atomic number shows how many protons are there in an atom's nucleus it, while the atomic mass is the total mass of all protons, neutrons and electrons.

By observing this formula ,

Mass number = number of protons + number of neutrons in an atom.

So , Due to this fact It is clear that atomic mass will be greater.