VESPR theory

Question 1

what is an electron domain geometry

Answer 1

the type of shape that is formed just by how many electron domains there are (based on just the number )

Question 2

What is molecular geometry

Answer 2

the shape of a molecule based on the influences of different bonds and lone electron pairs around the central atom

Question 3

what determines a linear VESPR shape

Answer 3

if there are 2 bonding electrons domains on the centeral atom

Question 4

what determines a trigonal planar shape

Answer 4

when there are three bonding electron domains around the central atom

Question 5

What determines the tetrahedral VESPR shape

Answer 5

When there is four bonding electron domains

Question 6

What determines a trigonal bipyramidal VESPR shape

Answer 6

when there are 5 bonding electron domains

Question 7

What determines a octrahedral VESPR shape

Answer 7

When there are 6 bonding electron domains

Question 8

What is the general formula for the molecular shape? and what is the meaning of each letter

Answer 8

A X(n) E(n)
- a = central atom
- x= the valence elements (aka the number of bonds to the central atom
- n = number of occurance
- e = the number SINGLE electrons around the central atom (if there is no electrons around the central atom then just elimante the e and just keep formula to AX(n))

Question 9

what determines if the MG will be different from the EDG

Answer 9

if there is an E in the general formula then the answer will vary

Question 10

What are all the possiblities for a central molecule with 2 electron domains

Answer 10

it can only be linear

Question 11

What are the possibilities for a central atom that has three electron domains

Answer 11

• 3 bonds and no non bonding electrons = trigonal planar
• 2 bonds and 1 non bonding electron pair = bent

Question 12

What are the possibilities for a for a central molecule that has 4 electron domains

Answer 12

• 4 bonds and no non bonding electrons = tetahedral
• 3 bonds and 1 non bonding electron pair = trigonal pyramidal
• 2 bonds and 2 non bonding electron pair = bent

Question 13

What are the possibilities for a central atom with 5 electron domains

Answer 13

• 5 bonds and no non bonding pairs = trigonal bipyramidal
• 4 bonds and one non bonding pair = see saw
• 3 bonds and two non bonding pairs = T-shape
• 2 bonds and three non bonding pairs = linear

Question 14

What are the possiblities of a central molecule that has 6 electron bonding domains

Answer 14

• 6 bonds and no non bonding pair = octrahedral
• 5 bonds and 1 non bonding pair = square pyramidal
• 4 bonds and 2 non bonding pairs = square planar
• 3 bonds and 3 non bonding pairs = T - shaped
• 2 bonds and 4 non bonding pairs = linear

Question 15

What is the bond angle in a linear shape

Answer 15

180 degree

Question 16

What is the bond angle in a bent shape

Answer 16

119.3 degree

Question 17

What is the bond angle in a trigonal pyramidal shape

Answer 17

106.7

Question 18

what is the bond angle in a trigonal planar shape

Answer 18

120

Question 19

What is the bond angle of a t shaped

Answer 19

86.2

Question 20

What is the bond angle of a tetrahederal shape

Answer 20

109.5

Question 21

What is the bond angle of a trigonal bipyramidal

Answer 21

90 degree between the top or bottom atoms
120 degree between one in the same plane

Question 22

What is the bond angle of a octahederal shape

Answer 22

90 degree between any domain