Final answer:
Chlorine (Cl) has the highest electronegativity amongst the given elements.
Explanation:
The element with the highest electronegativity from the given options is Chlorine (Cl). Electronegativity increases as you move from left to right across the periodic table.
Therefore, the order of electronegativity from highest to lowest in the provided options is: Cl > Se > Si > Sr.
Learn more about Electronegativity in Chemistry here:
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