Chapter 9: Shape and Polarity of molecules Flashcards

1
Q

According to the VSEPR, electrons

A

repel each other

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2
Q

valence electrons are found in

A

various domains

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3
Q

electron domain

A

lone pair or a bond at the central atom

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4
Q

the electron domain can be

A

single double or triple bond

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5
Q

lewis structure will tell you electron domain geometry and then

A

molecular geometry

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6
Q

2 domain, no lone pair equals

A

linear (mg and edg)

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7
Q

3 electron domains, no lone pair

A

trigonal planar (mg and edg)

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8
Q

4 domains, no lone pair

A

tetrahedral (edg and mg)

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9
Q

edg: 5 domains

A

trigonal bipyramid

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10
Q

edg: 6 domains

A

octahedral

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11
Q

3 domains and 1 lone pairs

A

bent mg

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12
Q

4 domains but 1 lone pairs

A

trigonal bipyramid mg

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13
Q

4 domains but 2 lone pairs

A

bent mg

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14
Q

dipole is pulled towards

A

higher en value element

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15
Q

electronegativity is a ______ and bond dipole moments are ___________

A

theory, measured

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16
Q

nonpolar give dipole what shape

A

symmetric

17
Q

lone pairs affect molecular polarity strongly by

A

pulling electron density strongly

18
Q

is there a lone pair on the central atom? yes? then its ______

A

polar

19
Q

there is no lone pair on central atom and the atoms are bonded to the same atom

A

nonpolar

20
Q

there is no lone pair on central atom and the atoms are not bonded to the same atom

A

polar because are different atoms which means there are different electronegativities

21
Q

no net dipole movement means

A

nonpolar molecule

22
Q

the arrows pulling away from each other means

A

nonpolar

23
Q

net dipole movement means

A

a polar molecule

24
Q

NH3

A

polar

25
Q

H20

A

polar

26
Q

HCl

A

polar

27
Q

CO2

A

nonpolar

28
Q

BeCl2

A

nonpolar

29
Q

CS2

A

nonpolar