Question

how many electrons will calcium gain or lose when it becomes an ion? gains 2 loses 2 gains 6 loses 6

Explanation:

Calcium is a metal in group 2 of the periodic table. Metals tend to lose electrons to form cations. Group 2 elements have 2 valence electrons. Losing 2 electrons will give calcium a stable electron configuration (similar to the noble gas argon).

Answer:

B. Loses 2