shapes of molecules and ions Flashcards
1
Q
electron pair repulsion theory
A
electron pairs around central atom determine the shape
electron pairs repel
2
Q
how do lone pairs affect shape of molecules
A
repel more than bonded pairs
pushes bonded pairs closer reducing bond angle by 2.5 per lone pair
3
Q
3 electron pairs
A
trigonal planar
120
4
Q
6 electron pairs
A
octahedral
90
5
Q
2 bonded pairs
A
linear
180
6
Q
2 bonded pairs
2 lone pairs
A
bent linear
104.5
7
Q
4 bonded pairs
0 lone pairs
A
tetrahedral
109.5
8
Q
3 bonded pairs
1 lone pair
A
trigonal pyramidal
107
9
Q
2 bonded pair
1 lone pair
A
bent linear
119
10
Q
4 bonded pairs
2 lone pairs
A
square planar
90
