Memory Lewis StructuresVersión en línea Formal Charges, Resonance structures por Marissa Corr Formula for formal charge 18 3, 1 The most stable resonance charge has a formal charge that is: Bent 7- (.5)(2) - 6 =0 1, 3 zero on all elements, or has the negative charge on the most electronegative atom. How many single bonds and how many lone pairs does HCl contain? The molecular geometry of CF4 is # valence electrons - 1/2(# bonding e's) - (# non-bonding e's) What is the mathematical process of finding the formal charge of Cl in HCl? 1, 2, 8 Tetrahedral The molecular geometry of SO2 is