Copyright © 2008 Pearson Prentice Hall, Inc.
Chapter 7/
20
Electron-Dot Structures of
Polyatomic Molecules
Draw an electron-dot structure for
I
Cl
3
.
7 + 3(7) = 28 valence electrons
Step 1:
Step 2:
Step 4:
Cl
I
Cl
Cl
Cl
I
Cl
Cl
Step 3:
Cl
I
Cl
Cl
Step 4: The remaining electrons go on the central atom.
Step 5: The central atom has at least 8 electrons so no multiple bonding.