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Conduction in pure silicon can be achieved by introducing impurities into the crystal lattice through a process called doping. Silicon can be doped with elements like boron or phosphorus to create p-type or n-type semiconductors, respectively. These dopants add extra charge carriers to the silicon, allowing it to conduct electricity efficiently.

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Why is the electrical conductivity of pure silicon very low?

The electrical conductivity of pure silicon is very low because it is a semiconductor with a full valence band and an energy gap between the valence and conduction bands. In its pure form, silicon does not have enough free electrons to conduct electricity effectively. doping silicon with other elements can increase its conductivity.


Is pure silicon an insulator?

Pure silicon is a semiconductor.


Why silicon is a pure substance?

Silicon is considered a pure substance because it is made up of only silicon atoms. It is a chemical element with a specific atomic structure and unique properties. In its pure form, silicon does not contain any other elements or impurities.


What happens when heat is added to pure silicon?

An intrinsic (pure) silicon crystal at room temperature has sufficient heat (thermal) energy for some valence electrons to jump the gap from the valence band into the conduction band, becoming free electrons.


What is the colour of silicon?

Pure silicon is gray in color and has a metallic luster


Is a silicon chip a pure element?

No, a silicon chip is not a pure element. A silicon chip is made up of silicon as well as other materials such as dopants and conductive metals to function as a semiconductor in electronic devices.


Is silicon dioxide a mixture or pure substance?

Silicon dioxide is a pure substance. It is a chemical compound made up of silicon and oxygen atoms in a fixed ratio, with a specific chemical formula (SiO2).


What are pure semiconductors?

silicon and germanium


Can clear silicon be painted?

Yes but if it is pure silicon then the paint wont stick to it.


Why we not use pure silicon instead of intrinsic silicon?

Intrinsic means no dopants. (a term used in semiconductors) So it means the same as pure.


Can silicon be mined in its pure form directly from earth?

Although silicon forms roughly 25% of the earths crust, it is rarely found as a pure mineral (Si) in nature and so is not mined as such. I believe the primary source of silicon which is mined comes from high quartz content sands. Quartz of course being composed of silicon and oxygen, (silicon dioxide).


Is silicon dioxide a pure element?

No, a silicon dioxide molecule is composed of 1 silicon atom and 2 oxygen atoms.