Final answer:The element that goes in the middle of the Lewis structure is typically the central atom, which is usually the least electronegative element in the compound.Explanation:The element that goes in the middle of the Lewis structure is typically the central atom. When constructing a Lewis structure, the central atom is usually the least electronegative element in the compound. Chemists usually list this central atom first in the chemical formula. Hydrogen and the halogens are usually terminal atoms, connected to only one other atom.In some cases, the central atom is determined by the element that has more valence electrons or unpaired dots in its Lewis structure. For example, in a molecule with a central carbon bonded to 3 oxygens, the carbon would be the central atom. The oxygens would be placed on the four sides....

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