Covalent Bonds does not always result in simple covalent molecules. It can also result in giant covalent macromolecules.
Example: Diamond
Structure: Diamond exist as a giant covalent macromolecule where every carbon atom is covalently bonded to six other carbon atoms.
Example: Graphite
Structure: Graphite exists as a giant covalent macromolecule made up of layers of carbon covalently bonded in a hexagonal lattice stacked together and between the layers is a 'sea' of electrons.
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