unit 5.2 Flashcards
1
Q
difference in electromagnitivity
A
0-.4 = pure covalent
.4- 1.6 = polar
1.7 and up= ionic
2
Q
Shapes
A
linear
trigonal planar
tetrahedron
bent (2 ways)
trig. pyramid
3
Q
VESPR
A
valence shell electron pair repulsion
4
Q
linear (know drawing)
A
180
5
Q
trig. planar (know drawing)
A
120
6
Q
tetrahedron (know drawing)
A
109.5
7
Q
Bent (know drawing)
A
105
8
Q
trig pyramaid
A
107
9
Q
molecular polarity rules
A
draw the shape
determine the polarity of bonds
if all bonds NP, molecule is NP
if any bonds are polar, shape symmetrical, molecule NP
if any bonds are polar, shape is asymmetrical, bonds polar
if polar must draw arrow on bonds and overall
10
Q
symmetrical vs asymetrical
A
no lone pairs and attachments must be same to be symmetrical
