MCAT General Chemistry Question 20: Answer and Explanation
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Question: 20
5. Antimony is used in some antiparasitic medications—specifically those targeting Leishmania donovani. What type of element is antimony?
- A. Metal
- B. Metalloid
- C. Halogen
- D. Nonmetal
Correct Answer: B
Explanation:
Antimony (Sb) is on the right side of the Periodic Table, but not far right enough to be a nonmetal, choice (D). It certainly does not lie far enough to the right to fall in Group VIIA (Group 17), which would classify it as a halogen, choice (C). While sources have rarely classified antimony as a metal, choice (A), it is usually classified as a metalloid, choice (B).