How many neutrons does a calcium atom have if the mass number is 42

Question

asked Dec 7, 2021 159k views

1 Answer

Greg Michalec · Answer 1 · 2021-12-11T18:00:35+0000

Answer:

22

Step-by-step explanation:

calcium has 20 proteins

and given the mass number is 42.

mass number = protons + neutrons

42= 20+ n

n= 42-20

n= 22