AP Chemistry Chapter 9 Molecular Geometry

What is this?

What is this?

Benzene

Delocalization

In resonance, less stable less energy

Localization

Not in resonance, more stable

2 Bonded 0 Pair

Linear, 180

3 bonded 0 pair

trigonal planar, 120

2 bonded 1 pair

bent, 120

4 bonded 0 pair

tetrahedral, 109.5

3 bonded 1 pair

trigonal pyramid, 107

2 bonded 2 pair

bent, 104.5

5 bonded 0 pair

trigonal bipyramidal, 120 and 90

4 bonded 1 pair

seesaw, 120 and 90

3 bonded 2 pair

t shaped, 120 and 90

2 bonded 3 pair

linear, 120 and 90, NONPOLAR

6 bonded 0 pair

octahedral, 90

5 bonded 1 pair

square pyramidal, 90

4 bonded 2 pair

square planar, 90, NONPOLAR

180 degrees is

linear, domain of 2

120 degrees is

trigonal planar, domain of 3

109.5 degrees is

tetrahedral, 4 bonded 0 nonbonded

107 degrees is

trigonal pyramidal, 3 bonded 1 nonbonded

104.5 degrees is

bent, 2 bonded 2 nonbonded

120 and 90 degrees is

trigonal bipyramidal, domain of 5

90 degrees is

octahedral, domain of 6

what is ALWAYS NONPOLAR

2 bonded 3 pair OR 4 bonded 2 pair

polar is when

there is more force from one side of a compound’s lewis dot structure (not symmetrical)

formal charges

Valence electrons of element - number of bonds - number of electron dots. needs to be as close to 0 as possible/0 for most stable resonance.