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How are the elements in the periodic table primarily arranged?
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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
O (Oxygen)
B
Na (Sodium)
C
Fe (Iron)
D
Si (Silicon)
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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: O (Oxygen) is a nonmetal, Na (Sodium) is a metal, Fe (Iron) is a metal, and Si (Silicon) is known to have metalloid properties.
Recognize that Silicon (Si) exhibits characteristics such as semiconducting behavior, which is typical of metalloids.
Conclude that among the options, Silicon (Si) is classified as a metalloid because it has properties between metals and nonmetals.
