There is no carbon atom in the NH molecule, so we will only calculate the formal charge for the nitrogen atom.The formula for calculating the formal charge is:Formal Charge = Valence Electrons - Non-bonding Electrons - 0.5 * Bonding Electrons For the nitrogen atom in NH:1. Valence Electrons: Nitrogen belongs to Group 15, so it has 5 valence electrons.2. Non-bonding Electrons: In NH, nitrogen is bonded to four hydrogen atoms, so it has no non-bonding electrons lone pairs .3. Bonding Electrons: Nitrogen forms a single bond with each of the four hydrogen atoms. Each single bond has 2 electrons, so there are a total of 4 * 2 = 8 bonding electrons.Now, we can calculate the formal charge on the nitrogen atom:Formal Charge = 5 - 0 - 0.5 * 8 Formal Charge = 5 - 0 - 4Formal Charge = +1So, the formal charge on the nitrogen atom in the NH molecule is +1.