Which of the following elements will form a cation with a +2 charge?

Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. The electrostatic attraction between the positives and negatives brings the particles together and creates an ionic compound, such as sodium chloride

If it isn’t a then it has to be d idk tho cause there’s no picture

Where are the questions