Which of the following are metalloids?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Boron, silicon, antimony
Metalloids are elements that possess properties of both metals and nonmetals. They are located on the zigzag line that separates the metals from the nonmetals on the periodic table.
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Boron (B), Silicon (Si), and Antimony (Sb) are all classified as metalloids.
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The other options are incorrect because they include elements that are either metals (aluminium, mercury, iron, copper) or nonmetals (oxygen).
The seven commonly recognized metalloids are Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, and Polonium.