Coal, pencil lead, and diamonds all contain carbon.
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.
Carbon is found in both diamonds and pencils.
Carbon constitutes pencil lead, charcoal and diamond. Although they appear different in appearance, they are chemically the same. Diamond is shiny and hard due to the crystalline arrangement of carbon atoms in it. Graphite or pencil lead has such an arrangement, that there are free electrons which make it a conductor of electricity. Elements like this, which are chemically the same but exhibit different physical properties are called allotropes, and the phenomenon is termed as allotropy.
Carbon is used for pencil lead, drinks, charcoal, fuel, and aircraft production. It looks like either diamonds, steel, lead or bubbles when mixed with oxygen.
Coal, diamonds, pencil lead, etc...
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.
Carbon. Diamonds are essentially carbon. So are coal, charcoal and pencil lead (which is graphite).
Carbon is found in both diamonds and pencils.
No, the lattice structure of diamonds is different from the lattice structure of lead or graphite, although both are formed from carbon. (The answer assumes that you are referring to pencil lead and not the chemical lead: Pb.)
You're thinking of carbon. Both pencil lead and diamonds are allotropes of carbon.
the most obvious reason being that diamonds cost a lot more than pencil lead. another reaon they are different is that diamonds are the hardest known substance to man. pencil lead is not hard at all.
Trick question. There is no metal in a "lead" pencil. The insert is composed of graphite, which is a carbon similar to coal.
It is non metallic. The pencil 'lead' is graphite which is a common mineral, a soft carbon
Carbon constitutes pencil lead, charcoal and diamond. Although they appear different in appearance, they are chemically the same. Diamond is shiny and hard due to the crystalline arrangement of carbon atoms in it. Graphite or pencil lead has such an arrangement, that there are free electrons which make it a conductor of electricity. Elements like this, which are chemically the same but exhibit different physical properties are called allotropes, and the phenomenon is termed as allotropy.
The lead in pencils are not made out of lead, as is common belief. Pencil lead is made out of graphite.