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6. If there are three electron pairs on the central atom, including a lone pair, what is the bond angle?
7. What is the bond angle in a molecule with four electron pairs, including one lone pair?
8. What can the bond angle be, if a molecule has a bent shape?
- 104.5 or 120
- 120 or 109
- 104.5 or 125
- 125 or 130
9. If a molecule has a tetrahedral shape, how many electron pairs does it have?
- Four, including two lone pairs
- Four, including no lone pairs
- Three, including one lone pair
- Two, including no lone pairs
- Three, including no lone pairs