Which of the following best describes an atom? consists of elements consists of compounds biggest unit of a compound smallest unit of an element

Your D.) Smallest Unit of an Element

Explanation: Atoms are considerably one of the smallest units known on Earth, the fundamental building blocks of matter. They cannot possibly consist of elements or compounds because both are larger than an atom. Atoms can't be the biggest unit of a compound because what would then be in place of these "building blocks"? This crosses out letters A, B, & C, leaving us with option D as our answer.

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its first and third is your answer i did the qustion the fourth isnt right