what is the hybridized state of carbon atom in diamond and graphite?

Dear Student, The state of hybridization of carbon in Graphite 1. Each carbon atom in graphite is sp2 hybridized and is bound to 3 other carbon atoms. 2. Graphite exists as sheets of hexagonal arrays of carbon. Each carbon atom in graphite thus has a trigonal planar geometry, which implies sp2 hybridization. Moreover, the p orbitals axial to the hexagonal sheets help to bond the layering sheets together. Regards