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