SAT Chemistry

Category - Multiple Choice

Which of the following elements is most easily reduced?
  1. Chlorine
  2. Phosphorous
  3. Sodium
  4. Potassium
  5. Lithium
Explanation
Answer: Chlorine

Easily reduced elements readily accept electrons. The additional electrons help these elements establish stable valence configurations. In the context of this question, chlorine is the most willing to accept an additional electron, so it is the most easily reduced.
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