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Element and Compound

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Matter can be divided into elements and  compounds.

Elements

  1. An element is a substance that consists of only one type of atom.
  2. Element can be either atoms or molecules.
Example:
(Both the iron and oxygen are element because they consist of only one type of atoms)
Compounds
  1. A compound is a substance composed of molecules made up of atoms of two or more elements.
  2. A compound is made up of either molecules or ions.
Example:
(Both the sodium chloride and carbon dioxide are compound because they consist of more than one type of atoms)