Materials are generally of 2 Types - Metals and Non-metals
Metals
A metal is a material which when freshly prepared or polished show lustre(shine)
They are malleable, ductile, sonorous and good conductor of heat and electricity
Example- Iron, Gold, Silver
Non Metals
A non metal is a material which do not have properties of metals like lustre
They are non malleable, non ductile, non sonorous and bad conductor of heat and electricity
Example- Carbon, Sulphur, Phosphorous.
Difference Between Metals and Nonmetals
|
Metals |
Non metals |
|
They have lustre (shine) |
They do not have lustre(shine) |
|
They are malleable (they can be broken into thin sheets) |
They are non malleable (they cannot be broken into thin sheets) |
|
They are good conductor of electricity (electricity can pass through them) |
They are bad conductor of electricity (electricity cannot pass through them) |
|
They are good conductor of heat (heat can pass through them) |
They are bad conductor of heat (heat cannot pass through them) |
|
They are ductile (they can be drawn into wires) |
They are non ductile (they cannot be drawn into wires) |
|
They are sonorous (they produce ringing sound) |
They are non sonorous (they do not produce sound) |
What are Metalloids?
Some products show property of both metals and nonmetals
they are called Metalloids
Example:- Silicon, Germanium, Arsenic
To summarize
