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1 Allotropes are forms of the same element which exhibit different physical properties. 2  Elements such as carbon, oxygen, phosphorus, tin and sulfur, display allotropy.
Because of their different structures, allotropes have different physical and chemical properties. 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.Diamond is one allotrope of carbon.ecause of their different structures, allotropes have different physical and chemical properties. 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.