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A molecule is formed from two or more atoms of a single element. An example is h2o. two hydrogen atoms and one oxygen atom forming a molecule of water! This question is archived.
An element is any substance that consists of only one type of atom, that is all atoms have the same number of protons. A compound is a substance that has two or more element â¦ s chemically bonded together either covalently or ionically in a fixed ratio.n element is a pure substance composed of 1 type of atom. Meaning all the atoms have the same number of protons. A compound is a pure substance composed of 2 or more types â¦ of atom chemically bonded together.