General Knowledge - General Science - Discussion

The graphite is an allotropic form of carbon that consists of atoms of carbon that possesses a kind of hybridization in a way that three strong bonds are forming a equilateral triangle in the same plane and a weaker bond perpendicular to that plane.

This allows that carbon arranged in parallel "sheets" that slide one each other giving the graphite a high lubricant performance.

That is the reason that is used in lead pencils: each graphite sheet slides on the paper surface when we write on it, leaving carbon atoms adhered on it. We saw the result as writing characters.

Why Graphite is used in pencil?

Graphite is an allotrope of carbon and hence a non-metal. But still, it conducts heat & electricity due to its structure.

It is used as lubricants (substances reducing friction) and made it easy to write.
This is why it is used for pencils.

As pencil is slippery in touch and the graphite is also slippery in touch. Also pencil is black in color as graphite is.

People beleive that mankind in stone age used agraphite stone to write on mud so scientist even tried to do same so pencils were created.

Graphite is used in pencil

Graphite is very soft to easy sharp and very easy write on paper and its smothly removable.

GRAPHITE is black colour and it is soft and sharp. It is one of carbon. So pencil writes black.

Of couse graphite is used in making pencil leads but you know that graphite is a soft non metal and gets powdered easily in hand. So in order to make it hard its mixed with a substance. I don't exactly know the substance's name. If any one knows it please post it here as graphite is lustrous so to be used!

Because graphite is soft & smooth like a pencile.