For the following mechanism, identify the sequence of arrow-pushing patterns: NO2 OH OH N O Br O N O O Br HO N O O HO Br N O O HO Br N O O HO Br @ @ @ @ @ @ @ @ @ @ ! ! !
Che 112 Notes Week of Jan 21, 2018 Bonds The size of the atom and the strength of a bond is usually inversely related. The atom that is most polar is the one that has the biggest difference between the electronegativity’s. Lewis Electron-Dot Formula In a Covalent compound, bonded electron pairs are shown as 2 dots or a dash. Step 1: Total group numbers in the formula in order to get the total number of valence electrons -For anions, add the number of the negative charges to the total. -For cations, subtract the number of the positive charges to total. Step 2: Arrange the atoms in the correct way. The least electronegative should be in the center.