Metalloids

Metal And Non-metals of Class 10

An element that has a property of metal and non-metal both are known as Amphoteric elements or Metalloids.

For Example

Element	Metallic Property	Non-Metallic Property
Germanium	It acts as a semiconductor with rise in temperature.	GeO₂ is acidic in nature.
Arsenic	Metallic grey arsenic is a fair conductor of electricity.	Yellow arsenic forms hydride. (AsH₃), a weak base.
Antimony	Grey coloured antimony conducts electricity	Yellow antimony forms stibine. (SbH₃), a weak base.
Selenium	Good conductor of electricity at 475K.	It exists in one non-metallic allotropic form.
Tellurium	Low electrical conductivity.	Tellurium resembles sulphur in chemical properties.