a student is modeling the units in the formula for magnesium chloride using the spheres shown here to…

a student is modeling the units in the formula for magnesium chloride using the spheres shown here to represent magnesium (mg) and chlorine (cl) atoms. which model correctly shows a stable ionic compound for magnesium chloride?
Answer
Brief Explanations:
Magnesium (Mg) has a +2 charge as an ion ($Mg^{2 + }$) and chlorine (Cl) has a - 1 charge as an ion ($Cl^{-}$). For a stable ionic compound, the charges must balance. So, one $Mg^{2+}$ ion will combine with two $Cl^{-}$ ions to form magnesium chloride ($MgCl_{2}$).
Answer:
B.