Question

14 how many neutrons are in this magnesium ion? * (0.5 points) enter your answer

Explanation:

Step1: Identify mass number and atomic number

The mass number (top - left) is 22 and the atomic number (bottom - left) is 12.

Step2: Use neutron number formula

The number of neutrons $n$ is given by $n = A - Z$, where $A$ is the mass number and $Z$ is the atomic number. So $n=22 - 12$.

Answer:

10