What are elements?how are they different …

Elements :

• Elements are pure substances which are the basic unit of matter and cannot be broken down into two or more simpler substances by any means.

(1) Elements are the simplest form of a pure substance i.e made up of the same atoms, whereas mixture is a mix of different elements.

(2) Elements can not be broken into anything else by any physical or chemical means, whereas mixtures are not chemically combined and can be separated by chemical means.

(3) The atom or atoms of an element (they also have fixed atomic mass) are in fixed ratio, whereas substances in a mixture can be added in any ratio.

(4)An element has its fixed properties, whereas the different substances in a mixture show their different properties.

(5)Examples of element are hydrogen, oxygen, etc and examples of mixture are mixture of sand and salt, mixture of iron fillings and sulfur, etc.