Question

Atoms of chlorine-37 have a mass number of 37.

Calculate the number of neutrons in atoms of chlorine-37.

Answer 1

Answer: #Neutrons= 20

Explanation: Cl with 37 mass number has the atomic number of 17.

Solution:

mass number = Protons + Neutrons

But # Protons = 17

Therefore, N= A-P= 37-17= 20 neutrons

Answer 2

20

Step-by-step explanation:

17 proton and 20 neutrons