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Carbon has two naturally occurring pure forms (allotropes), which are graphite and diamond.
Graphite is a silver grey powder which consists of planes of carbon atoms arranged in interlocking hexagons. There are two kinds of bonds within the sheets, covalent and delocalised. The delocalised bond gives graphite its electrical conductivity. There are only weak forces between the sheets of atoms, which lets them slide easily over each other. This is why graphite is used as a lubricant, especially where liquids are inappropriate. Graphite is used to make the brushes for electrical motors. More obviously it is the main ingredient in the so called 'lead' of a pencil. (It's not, and never has been made of lead, the confusion arose because they look similar, and they both mark paper.)
Diamond has a three dimensional structure where each atom is bound to four others by covalent bonds. This is a very rigid structure and gives diamond its hardness. Diamond forms deep within the Earth, when the temperature and pressure are very high. It is used as a gemstone, but also in drill bits.
There are also artificially made forms of pure carbon, called fullerenes, commonly known as bucky balls, which have sixty or more atoms arranged in cage-like structures.
As well as these crystalline forms there are many amorphous and impure forms. Amorphous means that there is no regular arrangement of atoms. These include soot, lampblack, charcoal and coke. They tend to form when carbon compounds are heated in a poor supply of air.
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Which of these is an example of elemental carbon?
Diamond is an example of elemental carbon.
Is diamond an elemental carbon?
Diamond is an allotrope of carbon.It is not an elemental carbon.
What are different non-crystalline forms of carbon?
Different non-crystalline forms of carbon include amorphous carbon, activated carbon, carbon black, and carbon nanotubes. These forms have irregular atomic structures and lack long-range order typical of crystalline forms like diamond or graphite.
Why is graphite considered as an element?
Graphite is one of the numerous allotropes of the element carbon. For allotropes of carbon please visit the link located underneath the answer.
What does photosynthesis transform elemental carbon into?
Photosynthesis converts carbon dioxide into oxygen.
When forms of elemental carbon posses 60 carbon atoms per molecule C60 they are known as an?
Buckminister fullerene
What is the chemical name of diamond?
Carbon. Diamond is one of the forms of elemental carbon, these are called allotropes, the most common allotrope is graphite.
Which of these is an example of elemental carbon?
Diamond is an example of elemental carbon.
Is diamond an elemental carbon?
Diamond is an allotrope of carbon.It is not an elemental carbon.
What are different non-crystalline forms of carbon?
Different non-crystalline forms of carbon include amorphous carbon, activated carbon, carbon black, and carbon nanotubes. These forms have irregular atomic structures and lack long-range order typical of crystalline forms like diamond or graphite.
Why is graphite considered as an element?
Graphite is one of the numerous allotropes of the element carbon. For allotropes of carbon please visit the link located underneath the answer.
Examples of different carbon molecules?
Carbon Dioxide, Carbon Monoxide, Carbon tetrafluoride, Carbolic Acid, Methanol, Ethanol, Propanol, etc....the list goes on and on and on,,, Elemental carbon can be diamond, graphite
What element compose a glucose molecule?
There are actually three different elemental compounds. They are oxygen, hydrogen, and carbon.
When an elemental metal combines with an elemental nonmetal it forms what?
binary ionic compound
Is carbon colorless?
Diamond can be colorless; but graphite, coal, carbon black are black.
Is carbon found in the air?
Elemental carbon is not a component of air but carbon compounds such as carbon dioxide are.
What elemental gruop is carbon found in?
In 5A
