# How do you draw the Lewis dot structure for Cal_2?

For calcium iodide, an ionic solid, we conceive of $C {a}^{2 +}$, and $2 \times {I}^{-}$ ions.
Calcium metal has been oxidized to give the $C {a}^{2 +}$ ion, whose electronic structure is akin to that of closed shell $\left[A r\right]$, and iodine has has been reduced to give closed shell $\left[X e\right]$.