Answer
The Lewis symbols are shown in the attached image.
![](https://gradesaver.s3.amazonaws.com/uploads/solution/dc68b88d-c9e6-4dfc-88a6-362f62d443f7/result_image/1523082881.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJVAXHCSURVZEX5QQ%2F20240908%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20240908T001924Z&X-Amz-Expires=900&X-Amz-SignedHeaders=host&X-Amz-Signature=ec8338a68cd3899682cbd6993f3b1c8eb438b17e56feb1b03147342cba1a0a91)
Work Step by Step
The Lewis symbol shows the number of valence electrons.
a) $Al$ has 3 valence electrons
b) $Na^+$ loses an electron and has no valence electrons
c) $Cl$ has 7 valence electrons
d) $Cl^-$ gains an electron and has 8 valence electrons