Chapter 9: VSEPR Theory Flashcards

1
Q

Steric Number =2

A

180 degree bond angle, linear shape

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2
Q

3 bonded atoms + 0 lone pairs

A

steric number = 3

trigonal planar

120 degree ideal bond angle

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3
Q

2 bonded atoms + 1 lone pair

A

steric number = 3

<120 degree bond angle

electron pair geometry = trigonal planar

molecular pair geometry = bent (angular)

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4
Q

4 bonded atoms + 0 lone pairs

A

steric number = 4

109.5 degree ideal bond angle

electron and molecular geometry = tetrahedral

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5
Q

3 bonded atoms + 1 lone pair

A

steric number = 4

< 109.5 degree ideal bond angle

electron geometry = tetrahedral

molecular geometry = trigonal planar

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6
Q

2 bonded atoms + 2 lone pairs

A

steric number = 4

< 109.5 degree ideal bond angle

electron geometry = tetrahedral
molecular geometry = bent (angular)

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7
Q

5 bonded atoms + 0 lone pairs

A

steric number = 5

90 degree and 120 degree ideal bond angle

electron and molecular geometry = trigonal bipyramidal

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8
Q

4 bonded atoms + 1 lone pair

A

steric number = 5

<90 degree and <120 degree ideal bond angle

electron geometry = trigonal bipyramidal

molecular geometry = seesaw

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9
Q

3 bonded atoms + 2 lone pairs

A

steric number = 5

<90 degree ideal bond angle

electron geometry = trigonal bipyramidal

molecular geometry = t-shaped

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10
Q

2 bonded atoms + 3 lone pairs

A

steric number = 5

180 degree ideal bond angle

electron geometry = trigonal bipyramidal

molecular geometry = linear

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11
Q

6 bonded atoms + 0 lone pairs

A

steric number = 6

90 degree ideal bond angle

electron and molecular geometry = octahedral

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12
Q

5 bonded atoms + 1 lone pair

A

steric number = 6

<90 degree ideal bond angle

electron geometry = octahedral

molecular geometry = square pyramidal

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13
Q

4 bonded atoms + 2 lone pairs

A

steric number = 6

90 degree ideal bond angle

electron geometry = octahedral

molecular geometry = square planar

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14
Q
A
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