Diamond is used in jewellery because it sparkles and reflects light in an attractive way. Its properties include: •Lustrous (shiny) •Colorless and transparent •Hard •High melting point •Doesn’t dissolve in water •Does not conduct electricity

Carbon Diamond Graphite

Allotropes are forms of an element that exist in the same state (solid, liquid or gas) but have different properties because their atoms are arranged differently

Like diamond, its properties include: •Lustrous •High melting point •Insoluble in water Also, unlike diamond, graphite is: •Black and opaque •Slippery •An electrical conductor Graphite is used inside pencils. It slips easily off the pencil onto the paper and leaves a black mark.

Carbon has different forms or 'allotropes', including diamond, graphite and fullerenes. Their properties make them useful for different purposes.

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Sulphur has two most known allotropes: Rhombic Sulphur and Monoclinic Sulphur

Rhombic Sulphur Monoclinic Sulphur Sulphur

Water, Steam and ice are not allotropes because the arrangement of them are always the same: H²O

A fresh sample of sulfur is heated to just above the melting point, then allowed to cool and crystallize slowly as monoclinic sulfur.

Crystals of rhombic sulfur are formed by dissolving Sulphur in a warm solvent, then allowing the solution allowed to cool and evaporate.

Sulphur can be dissolved and melted to create it’s allotropes.

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