Multiple Choice
Which of the following does the periodic table primarily organize?
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2. Atoms & Elements
Periodic Table: Classifications
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Which of the following elements is classified as a metalloid on the periodic table?
A
Na
B
O
C
Fe
D
Si
Verified step by step guidance1
Understand the classification of elements on the periodic table: metals, nonmetals, and metalloids. Metalloids have properties intermediate between metals and nonmetals.
Identify the given elements: Na (Sodium), O (Oxygen), Fe (Iron), and Si (Silicon).
Recall that Sodium (Na) is an alkali metal, Oxygen (O) is a nonmetal, and Iron (Fe) is a transition metal.
Recognize that Silicon (Si) is located along the stair-step line on the periodic table, which is where metalloids are typically found.
Conclude that Silicon (Si) is classified as a metalloid because it exhibits properties of both metals and nonmetals.
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