Question

magnesium is highly reactive and often forms an ion. select two elements that form ions with the same charge as magnesium ions. a. beryllium (be) b. calcium (ca) c. oxygen (o) d. potassium (k) e. sodium (na) f. sulfur (s)

Explanation:

Magnesium is in Group 2 of the periodic table and forms a 2+ ion. Beryllium and calcium are also in Group 2 and form 2+ ions.

Answer:

A. beryllium (Be), B. calcium (Ca)