Scelta multipla
Which of the following particles is found in the nucleus of an atom?
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2. Atoms & Elements
Periodic Table: Classifications
Scelta multipla
Which of the following elements is classified as a metalloid?
A
O
B
Fe
C
Na
D
Si
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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 zig-zag line on the periodic table.
Identify the elements given: O (oxygen) is a nonmetal, Fe (iron) is a metal, Na (sodium) 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, Si is classified as a metalloid due to its position on the periodic table and its intermediate properties.
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