Garrett, Alfred B. Department of Chemistry, Ohio State University, Columbus, Ohio.
- Occurrence and classification
- Origin and uses
- Additional Readings
An element is a substance made up of atoms with the same atomic number. Some common elements are oxygen, hydrogen, iron, copper, gold, silver, nitrogen, chlorine, and uranium. Approximately 75% of the elements are metals and the others are nonmetals. Most of the elements are solids at room temperature, two of them (mercury and bromine) are liquids, and the rest are gases.
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