Complete the Following Chart, in Order from Left to Right

Multiple Choice

Complete the following chart, in order from left to right $\begin{array}{|c|c|c|c|c|}\hline \text { Ion } & \text { Mass Number } & \text { Protons } & \text { Neutrons } & \text { Electrons } \\\hline{ }^{40} \mathrm{Ca}^{2+} & & & & \\\hline\end{array}$

A) 40, 20, 20, 20
B) 40, 20, 20, 18
C) 20, 20, 40, 20
D) 40, 20, 20, 22
E) 20, 40, 20, 22