Magnesium atoms have two electrons in their outermost shells,and chlorine atoms have seven.The compound magnesium chloride would contain
A)1 magnesium and 1 chlorine.
B)1 magnesium and 2 chlorine.
C)2 magnesium and 1 chlorine.
D)2 magnesium and 7 chlorine.
E)It is impossible to determine without more information.

Question

Quizplus · Accepted Answer

The magnesium atom will donate its two electrons to fill the outer shell of the chlorine atom, resulting in a compound with one magnesium ion (Mg2+) and two chloride ions (Cl-). The resulting formula for magnesium chloride is MgCl2.

Magnesium Atoms Have Two Electrons in Their Outermost Shells,and Chlorine