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