Consider the element magnesium: a. Explain how you would determine the number of neutrons in a Calcium atom that has a mass

Question

Consider the element magnesium:
a. Explain how you would determine the number of neutrons in a Calcium atom that has a mass number of 42. 
b. Another atom of Calcium has a mass number of 45. How does it compare to the above atom of Calcium?

Kunduz · Accepted Answer

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