객관식
Which type of elements are primarily found on the left to middle of the periodic table?
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2. Atoms & Elements
Periodic Table: Classifications
Multiple Choice
Which of the following elements is classified as a metalloid?
A
Si
B
Cl
C
Fe
D
Na
검증된 단계별 안내1
Understand the classification of elements: Metals, nonmetals, and metalloids. Metalloids have properties intermediate between metals and nonmetals.
Recall that metalloids are typically found along the 'stair-step' line on the periodic table, which separates metals and nonmetals.
Identify the elements given: Si (Silicon), Cl (Chlorine), Fe (Iron), and Na (Sodium).
Check the position of each element on the periodic table: Si is located along the stair-step line, indicating it is a metalloid.
Confirm that Cl is a nonmetal, Fe is a metal, and Na is a metal, so the metalloid among the options is Si.
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