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Which of the following is not a symbol of an element? a. Na b. CO c. S d. He
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Which of the following is not a symbol of an element?

a. Na
b. CO
c. S
d. He

User Tharok
by
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1 Answer

5 votes
CO is not an element because CO is a Compound. Elements contain One capital and one lowercase letter. While Compounds contain two or more capital letters.
User Binoculars
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