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Which group of elements is located between the metals and the nonmetals on the periodic table?
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2. Atoms & Elements
Periodic Table: Classifications
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Which of the following elements is not a metal?
A
Al (aluminum)
B
Na (sodium)
C
O (oxygen)
D
Fe (iron)
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Understand the classification of elements into metals, nonmetals, and metalloids based on their properties and position in the periodic table.
Identify the elements given: Al (aluminum), Na (sodium), Fe (iron), and O (oxygen).
Recall that metals are typically found on the left and center of the periodic table and have properties like high electrical conductivity, malleability, and luster.
Recognize that Al, Na, and Fe are all metals: Al is a post-transition metal, Na is an alkali metal, and Fe is a transition metal.
Note that O (oxygen) is a nonmetal, located on the right side of the periodic table, and does not exhibit metallic properties.
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