Question

How many neutrons does element X have if its atomic number is 22 and its mass number is 70?

Answer 1

It would have 48 neutrons. :)

Answer 2

The number of neutrons is 48

Step-by-step explanation:

As we know that the atomic number is the number of protons. If we subtract the atomic number from the mass number, we can actually find the number of neutrons.

So

Number of neutrons = Mass number - atomic number

Neutrons = 70 - 22 = 48