Question 1
What is the formal charge of an atom in a Lewis structure?
Question 2
Which expression is used to calculate formal charge?
Question 3
What is the formal charge on the central nitrogen atom in the ammonium ion, $\mathrm{NH_4^+}$?
Question 4
What is the formal charge on the oxygen atom in the hydroxide ion, $\mathrm{OH^-}$?
Question 5
Why are formal charges useful when drawing Lewis structures?