Allotropes

By: Jenna Knaff

Definition

• Different forms of the same element in the same physical state.

• http://www.chemicool.com/definition/allotropes.html

Pictures

• jkb

Pictures of the different allotropes of carbon.

White and black phosphorus are allotropes.

http://boomeria.org/chemtextbook/fig11-12.jpg

Information from book

• To be considered allotropes, the forms of the element must be in the same state-either solid of liquid, or gas.

Diamond

• Diamond- one of the best known allotropes of carbon.

• Hardness and high dispersion of light make it useful for industrial applications and jewelry.

Graphite

• Another one of the most known allotropes of carbon.

• Electrical conductor• Can be used as the material in the electrodes

of an electrical arc lamp.

Examples

• Composed of soft rock, black solid, is the carbon allotrope.

• Carbon in the form of a diamond. Its melting point is among the highest of any element.

• One of many recently identified allotropes of carbon, a group of ball-like and even tube like structures known as fullerenes.

Uses of Allotropes

• Used for rocket fuels.• We use the diamonds in jewelry• Graphite is used in pencil• Fullerenes are used and found in all carbon

based substances.• Oxidizer

How do they relate?

• Shows the arrangements of atoms and density of materials.

• Carbon has a lot to do with it which we have studied a lot individually and also it is in the periodic table which.

• We have been learning about atoms and all of its components and the arrangement of them.

Questions

• What is diamond used for?• What is stronger a diamond or graphite?• True of False: Graphite is used to make sand in

the etch-a-sketch boards?