The elements carbon, hydrogen, and oxygen option A. are composed of matter.
A chemical detail is a species of atoms that have a given range of protons in their nuclei, which include the pure substance consisting only of that species. in contrast to chemicals, chemical elements cannot be broken down into less difficult substances by any chemical reaction.
A substance that cannot be damaged down into less difficult materials by way of chemical means. Detail consists of atoms that have the same atomic number, this is, every atom has the same variety of protons in its nucleus as all different atoms of that detail.
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