Ch 9+10 (MO And VB Theory) Flashcards

1
Q

Hybrid of steric number =3

A

Sp^2

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2
Q

Hybrid of steric number =4

A

Sp^3

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3
Q

Hybrid of steric number =5

A

sp^3d

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4
Q

Hybrid of steric number =6

A

sp^3d^2

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5
Q

Steric number =

A

of bonded atoms + # of lone pairs

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6
Q

Ideal bond angle for linear geo

A

180

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7
Q

Ideal bond angle for trigonal planar

A

120

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8
Q

Ideal bond angle for bent(2 bonded, 1 lone pair)

A
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9
Q

Ideal bond angle for tetrahedral

A

109.5

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10
Q

Ideal bond angle for trigonal pyramid

A

109.5

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11
Q

Idea bond angle for (2 bonded, 2 lps)

A

109.5

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12
Q

Ideal bond angle for trigonal bipyramidal

A

90,120,180

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13
Q

Ideal bond angle for seesaw

A

90,120,180

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14
Q

Ideal bond angle for t shaped

A

90,180

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15
Q

Ideal bond angle for octahedral

A

90,180

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16
Q

Ideal bond angle for square pyramidal

17
Q

Ideal bond angle for square planar

18
Q

3-D drawings wedges=

19
Q

3-D drawings solid line

A

Same plane

20
Q

3-D drawings dotted line

21
Q

Bond order =

A

1/2(#bonding electrons - anti bonding electrons)

22
Q

O,F,Ne molecular orbital is more stable

A

Sigma 2p is stable; so lower energy

23
Q

B,C,N molecular orbital more stable?

A

Pi 2p is more stable; so it’s lower energy

24
Q

Molecular orbital configuration for B,C,N

A

(Sigma2s)(sigma star 2s)(pi2p)(sigma 2p)(pi star 2p)(sigma star 2p)

25
Molecular orbital configuration for O,F,Ne
(Sigma 2s)(sigma star 2s)(sigma 2p)(pi 2p)(pi star 2p)(sigma star 2p)
26
If lighter element and heavier element in a compound than the MO diagram is
Based on heavier element; (sigma 2p)(pi 2p)
27
Atomic orbitals shifts down for ...
More electronegative element
28
Sigma carries ______ electrons
2
29
Pi carries _____ electrons
4
30
Hybrid of steric number =2
Sp