Question

gain two electrons are found in group two atoms will be positive ions include elements be mg ca paul made a mistake on his list. which best describes the mistake paul made? a. alkaline earth metals do not gain two electrons, they lose two electrons. b. alkaline earth metals are not found in group two, they are found in group one.

Explanation:

Alkaline - earth metals (Be, Mg, Ca) lose 2 electrons, not gain. They are in group 2.

Answer:

A. Alkaline earth metals do not gain two electrons, they lose two electrons.