Zero, pencils are made with graphite not lead.
Pencil lead is made from graphite, a form of carbon, and is not toxic. Provided the piece that was swallowed is small enough not to obstruct the digestive system, and blunt enough not to cause scratches, there should be few ill effects.
Pencil lead, also known as graphite, is non-toxic and generally not harmful if swallowed in small amounts. However, swallowing a large amount of pencil lead can cause a blockage in the digestive tract and may require medical attention. It is always best to seek medical advice if someone has swallowed a large amount of pencil 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.
There is no lead in pencil - Pencil is made from graphite
Pencil lead is a compound
If your asking if the pencil has Lead, then the answer is that most pencils do NOT have lead in them anymore.
Pencil lead isn't really lead, it is graphite, a form of carbon. Pencil lead doesn't have any lead in it whatsoever.
Pencil lead is a conductor.
we get lead of pencil from the mixture of clay and graphite
A 9mm pencil lead is thicker than a 7mm pencil lead.
Pencil lead is made of graphite and clay. Newer recipes for pencil lead use waxy polymers to bind the graphite to produce a lead that does not snap when the pencil is flexed.
If you swallow a small piece of mechanical pencil lead, it will likely pass through your digestive system without causing harm. However, swallowing a large amount or if it becomes stuck, it could cause a blockage or injury. It is recommended to seek medical attention if you have any concerns.