Question

Compare the allotropes of caravan?

Answer 1

allotrope: * same chemical properties
                 *different physical properties


Diamond :* hardest substance
                  *carbon linked to 4 other carbon 
                  *3D rigid structure

graphite: *smooth and slippery
                *carbon bonded to 3 carbon , one double bond
               *conduct electricity

C60 (buckminster fullerence): * football shape