General Science • ChemistryEasy
Which of the following elements is classified as a metalloid?
A. Aluminum
B. Silicon✓ Correct Answer
C. Phosphorus
D. Sulfur
💡 Solution & Explanation
Silicon is a well-known metalloid because its physical and chemical properties lie between those of metals and non-metals, making it a critical semiconductor in electronics. Aluminum is a true metal, whereas phosphorus and sulfur are reactive non-metals.
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