Metals and Non-metals Class 10 Notes

Elements are broadly classified into metals and non-metals. In the modern periodic table of elements, both metal and nonmetals are grouped separately. All metals are arranged on the left side and the nonmetals on the right side. Altogether there are 70 metals and 22 non-metals in a periodic table of elements.

What are Metals?

Metals are lustrous, opaque, ductile and malleable, and good conductors of heat and electricity. Most of the metals are solids at room temperature, except few. There are many metals that occur in nature either as free elements or in the form of their compounds. Aluminum, Copper, Iron, Zinc, are examples of metals.

What are Nonmetals?

The elements, which do not possess the properties of metals are termed as non-metals. hydrogen, carbon, nitrogen, phosphorus are examples of non-metals. They are brittle and can be easily broken into sub-particles. They are bad conductors of heat and electricity and exists in both solids and gases except few.

Properties of Metals and Non- Metals

Properties Metals Non-metals
Melting and boiling points High melting and boiling points Low melting and boiling points
Malleability and Ductility Both malleable and ductile Neither malleable and ductile
Density Generally High. Generally Low.
Luster Poses shining luster Do not have a luster
Hardness Generally hard Soft except Diamond

Few Important Questions

  • What is an alloy?
  • How are metals extracted?
  • What is Corrosion? How to prevent Corrosion.
  • List out the chemical properties of Metals and Non-metals.
  • Explain what happens when metal reacts with the acid and air.

Learn more about metals and non-metals from the topics given below:

Practise This Question

Which of the following species does not reproduce?