Multi-Element Molecules Oxygen:(1s)2(2s)2(2p)4-n=2;6 valence electrons: Fluorine we already know: (n =2;7 valence e) To put 8 electrons on each atom,we need two fluorines and one oxygen:F: :0-f: 。 :F: F: Note:The dot diagram tells us nothing about structure V-7Multi-Element Molecules Oxygen: (1s)2 (2s)2 (2p)4 → n = 2; 6 valence electrons: O Fluorine we already know: F (n = 2; 7 valence e- ) To put 8 electrons on each atom, we need two fluorines and one oxygen: O F F O F F Note: The dot diagram tells us nothing about structure V-7