Question

If an element has a mass number of 16 and an atomic number of 8, how many neutrons does the element have? A. 16 B. 10 C. 8 D. 9

Answer 1

C. 8

Step-by-step explanation:

number of neutrons = mass number - atomic number

16-8

8

Answer 2

Answer: C

Explanation: because mass number = proton + neutron number and atomic number = proton number

so 16-8=8