Multiple Choice
Which of the following elements is classified as a metalloid?
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2. Atoms & Elements
Periodic Table: Classifications
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Which of the following elements is classified as a metalloid?
A
Fe
B
Na
C
Si
D
O
Verified step by step guidance1
Understand the classification of elements into metals, nonmetals, and metalloids based on their physical and chemical properties.
Recall that metalloids have properties intermediate between metals and nonmetals and are typically found along the 'stair-step' line on the periodic table.
Identify the given elements: Fe (iron) is a metal, Na (sodium) is a metal, O (oxygen) is a nonmetal, and Si (silicon) is a metalloid.
Recognize that silicon (Si) exhibits both metallic and nonmetallic properties, which is characteristic of metalloids.
Conclude that among the options, Si is classified as a metalloid because it fits the criteria and position on the periodic table.
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