Chem - Bond/structure - bond angles and shapes Flashcards
1
Q
What is a tetrahedral shape
A
Four regions of negative charge all regions bonded, bond angle of 109
2
Q
What is a trigonal planar shape
A
Three regions of negtive charge. All regions bonded, Bond angle of 120
3
Q
What is a linear shape
A
Two regions of negative charge. All regions are bonded with a bond angle of 180
4
Q
What is bent (3 regions) shape
A
Three regions of negative charge. Two bonded and one unbonded with abound agle of 120
5
Q
What is bent (4 regions ) shape
A
Four regions of negative charge. Two bonded and two unbonded with a bond angle of 109
6
Q
What is trigonal pyramidal shape
A
Four regions of negative charge. Three bonded and one unbonded with a bond angle of 109
7
Q
How to explain shape
A
- Regions of electronegativity that repeal for maximum separation
- Therefore forming the starting shape… with a bond angle of..
- bonded and unbonded regions
- therefore making the final shape… with a bond angle of…
