use the periodic table below to answer the following questions. which elements commonly form anions? c and d…

Brief Explanations:

Non - metals commonly form anions. In the periodic table, elements on the right side (excluding noble gases) are non - metals. Assuming A and B are metals and C and D are non - metals (as per general periodic table trends where metals are on the left and non - metals on the right), non - metals gain electrons to form anions.

Answer:

A. C and D