Electronegativities of the elements Na , Al , cap p , and Cl follow a specific trend across the period. Based on this trend, an electron will be most strongly attracted to

Electronegativity generally increases from left to right across a period because atoms attract shared electrons more strongly. Na, Al, P, and Cl are in that order across the periodic table, so Cl has the highest electronegativity and most strongly attracts an electron.

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