Chemical Composition of Matter
As like physical composition of matter, chemical composition is also divided into various type for better clarifications which deals with the chemical property of any substance. On this basis element is divided into three groups element, compound and mixture.
Element:
тАв It is a fundamental matter which can not be divided or decomposed into two or more component having different characteristics or properties by any physical or chemical process.
тАв Purest form of matter.
тАв It is of two types тАУ metals and none metals.
тАв Their atoms have same nuclear charge.
тАв Metals are malleable in nature and good conductor of heat and electricity while non metals are brittle in nature and bad conductor of heat and electricity.
Compound:
тАв It is a substance formed by the chemical combination of two or more elements composed in a definite ratio.
тАв The physical and chemical property of the formed compound varies from the constituents or components of the earlier elements.
тАв For ex тАУ(H 2 O ) water is formed from hydrogen and oxygen.
( C O 2 ) carbon dioxide is formed from carbon and oxygen.
Mixture:
тАв It is a substance formed by the two or more element by the means of physical combination into two or more pure element.
тАв They donтАЩt have used elements of definite proportion.
тАв For ex тАУ Air ( which Is mixture of many gases) , Brass ( copper + zinc) etc.
