Summary of Insulator, Conductor and Semiconductor
Core - consists of all the
inner shells and the nucleus.
Insulator -does not
conduct electrical current under normal conditions.
-Very high resistivity
- Very low conductivity
- Bad conductors of elctricity.
e.g. - rubber, glass, mica,
quartz and plastics.
Conductor - conduct electrical current.
-Good conductors of
electricity
- High conductivity
- Low resistivity
e.g- copper,
silver, gold, aluminium
Semiconductor
– Ability to
conduct current between insulator and conductor
- neither
a good conductor nor a good insulator
- Antimony,
arsenic, astatine, boron, polonium, tellurium, silicon and germanium.
