Question

If you are told that an atom has 8 neutrons and a mass of 19, how would you determine the number of protons in the atom?

Answer 1

Subtract 8 from 19 to get the number of protons

Protons + neutrons = mass of an atom

Answer 2

11

Step-by-step explanation:

The formula you would use is

Protons = mass - neutrons

mass = 19

neutrons = 8

Protons = 19 - 8

Protons = 11