Draw an electron dot diagram to show the formation of each of the following compounds: Magnesium Chloride. [H=1,C=6,Mg=12,Cl=17].
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Solution
Mg atom has 2 valence electrons. It loses these 2 valence electrons to form Mg2+ ion. Cl atom has 7 valence electrons. It gains one valence electron to form Cl− ion.