Memory Game Lewis StructuresOnline version Formal Charges, Resonance structures by Marissa Corr Bent Tetrahedral The molecular geometry of CF4 is The most stable resonance charge has a formal charge that is: 18 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? # 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? Formula for formal charge 7- (.5)(2) - 6 =0 1, 3 3, 1 The molecular geometry of SO2 is 1, 2, 8