Multiple Choice
Which of the following elements is classified as a nonmetal on the periodic table?
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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
Si (Silicon)
B
O (Oxygen)
C
Na (Sodium)
D
Fe (Iron)
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 elements given: O (Oxygen) is a nonmetal, Na (Sodium) is an alkali metal, Fe (Iron) is a transition metal, and Si (Silicon) is located along the metalloid line.
Recognize that Silicon (Si) exhibits properties of both metals and nonmetals, such as semiconducting behavior, which is characteristic of metalloids.
Conclude that among the options, Silicon (Si) is classified as a metalloid.
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