Question

Draw the Lewis dot structure for Mg2 . Show the formal charges of all atoms in the correct structure. To change the symbol of an atom, double-click on the atom and enter the letter of the new atom.

Answer 1

The Lewis dot structure of Mg²⁺ is shown in the picture attached.

In Mg atom, the outermost orbit has 2 electrons.

The atom has the ability to lose its 2 electrons to become Mg²⁺

The Mg²⁺ ion have completed its vacancy in the second orbit having 8 electrons.

Therefore, the valency of Mg becomes 2+ as it loses its electron.