What are Elements?

It is a substance which cannot be split into 2 or more simpler substances by chemical reactions

It is made up of only 1 type of atoms



Oxygen (O 2 ), Nitrogen(N 2 ) , Hydrogen(H 2 ) , Helium(He), Sulphur (S 8 )

What are Compounds?

They are made up of more than 1 type of atoms



Water (H 2 O) is made up of 2 Atoms of Hydrogen and 1 Atom of Oxygen

Carbon Dioxide(CO 2 ) is made up of 1 atom of Carbon and 2 atoms of Oxygen

  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.