Question

How many neutrons are in potassium-50?

Answer 1

31 neutrons

Step-by-step explanation:

Potassium has 19 protons (you can tell by the atomic number)

Potassium-50 is an isotope, meaning that there are a different amount of neutrons than normal.

Protons never change so subtract 50 from 19 to get the number of neutrons.

Answer 2

Step-by-step explanation:

e 20 neutrones