2
Nitrogen can form three covalent bonds when it has no negative charge.
3 covalent bonds can be formed by Nitrogen
Nitrogen tetroxide has four double covalent bonds.
Ammonia is a nitrogen atom bonded to three hydrogen atoms. There is a total of three covalent bonds (one for each hydrogen).
3
Nitrogen can form single, double, and triple covalent bonds.
Three covalent bonds. One sigma bond and two pi bonds.
Covalent bonds do not "make up" anything; they merely hold the atoms that carry the mass of the substance together. If the questioner means, "How many covalent bonds are in a nitrogen molecule with formula N2" the answer is "one triple covalent bond."
3
A nitrogen atom can form three bonds at most as it shows valency of three.
Carbon will form four covalent bonds, nitrogen will form three covalent bonds, oxygen will form two covalent bonds, and hydrogen will form one covalent bond. Click on the related link to see a diagram showing the structure of an amino acid.
Hydrogen forms three covalent bonds in electrically neutral compounds.