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

Elements and Compounds

Last updated at Feb. 16, 2021 by

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

 

Example

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

 

Example

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

    3. Concepts

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

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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.