- If carbon loses four electrons from the outer shell, it has to form ${{C}^{4+}}$ ions.
- This requires huge amount of energy which is not available normally.
- Therefore ${{C}^{4+}}$ formation also is a remote possibility.
- Carbon has to satisfy its tetravalency by sharing electrons with other atoms.
- It has to form four covalent bonds either with its own atoms or atoms of other elements.