MCAT General Chemistry Question 26: Answer and Explanation
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Question: 26
11. Which of the following elements has the highest electronegativity?
- A. Mg
- B. Cl
- C. Zn
- D. I
Correct Answer: B
Explanation:
This question requires knowledge of the trends of electronegativity within the Periodic Table. Electronegativity increases as one moves from left to right for the same reasons that effective nuclear charge increases. Electronegativity decreases as one moves down the Periodic Table because there are more electron shells separating the nucleus from the outermost electrons. In this question, chlorine is the furthest toward the top-right corner of the Periodic Table.