bhagya Posted October 21, 2011 Report Share Posted October 21, 2011 The concept of chemical element is related to that of chemical substance. A chemical element is specifically a substance which is composed of a single type of atom. A chemical element is characterized by a particular number of protons in the nuclei of its atoms. This number is known as the atomic number of the element. Spam links deleted. Quote Link to comment Share on other sites More sharing options...
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