noun
a substance that cannot be broken down into simpler substances by chemical means; composed of atoms of only one kind
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The periodic table organizes all known chemical elements based on their atomic number and properties.
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I learned about each chemical element in my chemistry class.
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Dude, did you know that each chemical element has a unique symbol?
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In the world of music, each note can be seen as a different chemical element that contributes to the overall composition.