Question

which conclusion can be made about calcium and magnesium in the same group on the periodic table? they are both reactive metals they both have complete outer shells. they are both semi - conductors of heat and electricity.

Explanation:

Calcium and magnesium are in Group 2 of the periodic table. Group 2 elements are alkaline earth metals. They are reactive metals. Elements with complete outer shells are noble gases (Group 18). Semi - conductors are metalloids (e.g., silicon, germanium), and calcium and magnesium are metals (good conductors).

Answer:

They are both reactive metals.