Recitation 8
Last Name: _____________________________
First Name: _____________________________
1. What is the octet rule? What three categories summarize exceptions to the octet
rule?
2. Draw a Lewis structure for the phosphate ion where the central atom satisfies
the octet and label the formal charges on each atom in the structure.
Draw a better structure for phosphate that minimizes formal charges. Include
the resonance structures.
3. There are 5 electron-domain classifications. Identify each and give the ideal bond
angle between the central atom and the outer atoms or electron-pairs.
Number of electron
domains
Name Ideal Bond Angle
2
3
4
5
6
4. How do lone pairs and double bonds change the bond angels in a structure?
1
