The graphite used in pencils is quite soft. Clay is added to the graphite to strengthen the 'lead' of the pencil. The amount of clay used changes the pencil's rating, with HB being the commonest, B2 being softer (darker marks), and H being harder (lighter marks).
very hard
Any link between polonium and a pencil.
525
A "pencil lead" is a mixture of the graphite allotrope of carbon mixed with clay and baked hard. While a pencil lead will conduct electricity, it can not be used to make a light bulb.
The # is reference to the hardness of lead A number 2 pencil is averagely hard aka HB
If the lead is stuck in your mechanical pencil, try gently tapping the pencil on a hard surface to dislodge the lead. You can also try twisting the tip of the pencil to push the lead out. If these methods don't work, you may need to carefully remove the lead using tweezers or a needle. Be cautious to avoid damaging the pencil or injuring yourself.
The graphite in a pencil is a form of carbon that is bonded together in layers. It is soft and easily leaves a mark on paper when pressure is applied. Graphite is the material that makes up the "lead" in a pencil, allowing for writing or drawing.
To prevent a pencil led from fading is to not bare down so hard on the paper.
To effectively remove a stuck lead from a mechanical pencil, try gently tapping the pencil on a hard surface to dislodge the lead. If that doesn't work, use a small tool like a needle or a paper clip to carefully push the lead out from the tip of the pencil. Be cautious not to damage the pencil or injure yourself while attempting to remove the stuck lead.
A typical lead pencil does not actually contain lead. The "lead" in a pencil is made of graphite, which is a crystalline form of carbon. Therefore, there is 0% lead in a lead pencil.
No, he just used graphite (a naturally occuring drawing medium). The figure of the prince is drawn with a soft pencil and the background flowers with a hard pencil. Soft pencil makes an image darker, while a hard pencil makes an image lighter or silver.
There is no lead in pencil - Pencil is made from graphite