Pencil lead does not have coal. Pencil lead contains graphite.
Graphite is used to make pencil lead, but it is not a form of coal.
Coal, pencil lead, and diamonds are all forms of carbon. The difference lies in how the carbon atoms are structured. In coal, carbon atoms are loosely attached, while in diamonds they are tightly bonded, resulting in the hardness of diamonds. Pencil lead is a mixture of graphite (which is a crystalline form of carbon) and clay.
If your asking if the pencil has Lead, then the answer is that most pencils do NOT have lead in them anymore.
A 7mm pencil lead is thicker than a 5mm pencil lead. The diameter of the lead determines its thickness, so the lead with a larger diameter will be thicker.
Graphite is the mineral that is used to make the lead in a pencil. Despite its name, pencil "lead" is actually composed of graphite mixed with clay.
Graphite is used to make pencil lead, but it is not a form of coal.
Coal, pencil lead, and diamonds are all forms of carbon. The difference lies in how the carbon atoms are structured. In coal, carbon atoms are loosely attached, while in diamonds they are tightly bonded, resulting in the hardness of diamonds. Pencil lead is a mixture of graphite (which is a crystalline form of carbon) and clay.
Coal, diamonds, pencil lead, etc...
Trick question. There is no metal in a "lead" pencil. The insert is composed of graphite, which is a carbon similar to coal.
Yes. Other allotropes include coal and graphite, such as you might find in a pencil as '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.
coal+wood=pencil
coal+wood=pencil
There is no lead in pencil - Pencil is made from graphite
The tip of a pencil is called the "point".
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.