Molecular Shapes VSEPR Model 9.1-9.4 Flashcards Preview

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Flashcards in Molecular Shapes VSEPR Model 9.1-9.4 Deck (26):
1

B does not follow

the octect rule

2

Molecular geometry

is the general shape of a molecule, as determined by the relative positions of the atomic nuclei

3

electron domains

how many places are electon bonds or lone paries exsist around an atom

4

valence-shell electron pair repulsion (VSEPR) model

predicts the shapes of molecules and ions by assuming that the valence shell electron pairs are arranged as far from one another as possible.

5

a molecule with 2 electron domains will always be

liner ,with zero non bonding domains

6

a molecule with 3 bonding domains and no nonbonding pairs will be

Trigonal planar,

7

a molecule with 3 electron domains and 1 non bonding domain

trigonal planar(ED), bent (MG)

8

a molecule with 4 electron domains and none non bonding domain

tetrahedral (ED), tetrahedral (MG)

9

an molecule with 3 electron domains is ______ and has ___ types of molecular gemometry

Trigonal PLanar, 2 types

10

an molecule with 4 electron domains is ______ and has ___ types of molecular gemometry

tetrahedral, 3 types

11

an molecule with 5 electron domains is ______ and has ___ types of molecular gemometry

Trigonal bipyramidal 4types

12

an molecule with 6 electron domains is ______ and has ___ types of molecular gemometry

octahedral 3types

13

a molecule with 4 electron domains and 1 non bonding domain

tetrahedral(ED), trigonal pyramidal MG)

14

a molecule with 4 electron domains and 2 non bonding domain

tetrahedral(ED), Bent (MG)

15

a molecule with 5 electron domains and none non bonding domain

trigonal pipyramidal(ED)and (MG)

16

a molecule with 5 electron domains and 1 non bonding domain

trigonal bipyramidal(ED), seesaw (MG)

17

a molecule with 5 electron domains and 2 non bonding domain

trigonal bipyramidal(ED), T-shaped (MG)

18

a molecule with 5 electron domains and 3 non bonding domain

trigonal bipyramidal(ED), linear (MG)

19

a molecule with 6 electron domains and none non bonding domain

octahedral (ED) and (MG)

20

a molecule with 6 electron domains and 1 non bonding domain

octahedral (ED) square pyramidal(MG)

21

a molecule with 6 electron domains and 2 non bonding domain

octahedra; (ED) square planar (MG)

22

in linear domains the bond angle is

180

23

Nonbonding pairs are______ than bonding pairs.
Therefore, their repulsions are greater; so...

physically larger ,this tends to decrease bond angles in a molecule.

24

Double and triple bonds place _______ on one side of the central atom than do single bonds.
Therefore,

greater electron density. they also affect bond angles.

25

when drawing the MG for trigonal bi pyramidal where do you add lone pairs

on the equatorial plane

26

when drawing the MG for octahedral where do you add lone pairs

on the axial plane