Molecular Geometry

Question 1

Valence-Shell Electron Pair Repulsion (VESPR)

Answer 1

Groups of valence electrons are located as far as possible to minimize repulsions

Question 2

Electron group (steric number)

Answer 2

Any number of electrons that occupies a localized region around an atom

Question 3

What determines molecular shape?

Answer 3

Electron group arrangement

Question 4

Bond angle

Answer 4

Angle formed by the 2 nuclei of 2 surrounding atoms with the nucleus of the central atom

Question 5

Answer 5

Trigonal planar
120º bond angles

Question 6

Answer 6

Bent (angular)
<120º bond angle

Question 7

SN=3

Answer 7

Trigonal planar

Question 8

SN=2

Answer 8

Linear

Question 9

SN= 4

Answer 9

Tetrahedral

Question 10

Answer 10

Linear
180º

Question 11

Answer 11

Tetrahedral Trigonal pyramidal
<109.5º

Question 12

Answer 12

Tetrahedral bent (angular)
<109.5º

Question 13

SN= 5

Answer 13

Trigonal Bipyramidal

Question 14

Answer 14

Trigonal Bipyramidal
-90º
-120º

Question 15

Answer 15

Seesaw
<90º
<120º

Question 16

Answer 16

T-Shaped
<90º

Question 17

SN= 6

Answer 17

Octahedral

Question 18

Answer 18

Octahedral
90°

Question 19

Answer 19

Square Pyramidal
<90°

Question 20

Answer 20

Square Planar
90°

Question 21

Dipole moment

Answer 21

Polarity of a molecule