the number of associated electrons from the number ofvalence electrons. Fornitrogen, the formal charge is 5 - 5 = 0. For each oxygen atom, the formal charge is 6- 6 = 0.Therefore, the formal charge on nitrogen in NO3- is 0.The formal charge on nitrogen in NO3- is 0, where the Lewis structure of the ion is:N   O|   |O-  O|   |O   O1. Count the total number of valence electrons for the molecule. In this case, there is 1 nitrogen atom and3 oxygen atoms, so the total number of valence electrons is 8 + 6*3 = 26.2. Assign the electrons to the atoms according to the octet rule. Nitrogen has 5 valence electrons, so assign 5 electrons to it. Oxygen has 6valence electrons, so assign 6 electrons to each of the oxygen atoms.3. Count the number of electrons that are associated with each atom. Nitrogen has 5 electrons associated with it, and each oxygen atom has 6 electrons associated with it.4. Calculate the formal charge for each atom by subtracting the number of associatedelectronsfrom the number of valence electrons. For nitrogen, the formal charge is 5 - 5 = 0. For each oxygen atom, the formal charge is 6- 6 = 0.Therefore, the formal charge onnitrogenin NO3- is 0.learn more aboutvalence electronherebrainly.com/question/28977387#SPJ4...

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