Copyright © 2008 Pearson Prentice Hall, Inc.
Chapter 7/
19
Electron-Dot Structures of
Polyatomic Molecules
Draw an electron-dot structure for
SF
6
.
6 + 4(7) = 34 valence electrons
Step 1:
Step 2:
Step 3:
F
F
S
F
F
F
F
F
F
S
F
F
F
F
Step 2: The central atom is in row 3 so there can be more than 8 electrons.
Step 4: There are no remaining electrons.
Step 5: The central atom has at least 8 electrons so no multiple bonding.