It depends on the number of valence electrons.
A carbon atom can form 4 single covalent bonds
The nitrogen atom forms 3 covalent bonds.
3 covalent bonds (as in ammonia).
maximum of four (single) covalent bonds per carbon
4
A carbon atom can form 4 single covalent bonds
4
The nitrogen atom forms 3 covalent bonds.
Only one covalent bond.
3 covalent bonds (as in ammonia).
maximum of four (single) covalent bonds per carbon
4
4
A carbon atom needs 4 covalent bonds to complete its valence shell.
Maximum of four bonds. It can form four
An atom can make a number of covalent bonds equal to the number of electrons it needs to fill its outer shell
The number of unpaired electrons in valence shell or numbers of electrons less then 8 in outermost shell of an atom give information about covalent bonds my be formed by an atom.