An element may be defined as a substance that cannot be decomposed into simpler substances by ordinary chemical processes. 

 

These elements are further of two types:

  • Metals
  • Non-metals

 

Metals 

These are shiny elements that form positive ions ( cations ) and are good conductors of heat and electricity .

 

Metals are also malleable and ductile.

  • Malleability is a property of metals that allows it to be beaten into thin sheets without breaking. 
  • Ductility is a property of metals that allows them to be stretched into thin wires without breaking. 

 

Eg : Gold, Silver, Aluminium etc.

 

Non-metals: 

Elements that form negative ions ( anions ) and are bad conductors of heat and electricity

These show properties opposite to those of metals. 

  • Non-metals are neither malleable nor ductile
  • They are brittle and they break when put under stress. 

Eg : Chlorine, Oxygen, Sulphur etc.

  1. Class 10
  2. Chapter 3 Class 10 - Metals and Non-Metals (Term 1)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo