In 1567
The lead pencil, which actually contains graphite and not lead, was invented in the 16th century. The modern version with a wooden casing was patented in 1806 by the Frenchman Nicolas-Jacques Conte.
It was invented by N.J Conte in 1795.
so that people could write
The color of pencil lead streak is usually gray or black, depending on the hardness of the lead. The softer the lead, the darker the streak it creates.
yes
yes
yes
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.
The "lead" found in pencils is actually graphite, or to answer the question, the "blackelement found in a pencil is carbon (C).
Two physical properties of pencil lead are its hardness, which is measured on the Mohs scale, and its color, typically ranging from dark grey to black.
There is no lead in pencil - Pencil is made from graphite
Graphite and carbon black, all elementary Carbon (C)