chem chapter 6 quiz 2 Flashcards Preview

Junior Year > chem chapter 6 quiz 2 > Flashcards

Flashcards in chem chapter 6 quiz 2 Deck (24):
0

2 electron domains means _____ electron geometry and _____ bond angles

linear, 180

1

3 electron domains means _____ electron geometry and _____ bond angles

trigonal planar 120

2

4 electron domains means _____ electron geometry and _____ bond angles

tetrahedral, 109.5

3

5 electron domains means _____ electron geometry and _____ bond angles

trigonal bipyramidal 180/120/90

4

6 electron domains means _____ electron geometry and _____ bond angles

octahedral 180/90

5

if a molecule has 2 total electron domains
what will it look like with 0,1,2,3 lone pairs on the central atom

linear----

6

if a molecule has 3 total electron domains
what will it look like with 0,1,2,3 lone pairs on the central atom

trigonal planar, bent, linear,--

7

if a molecule has 4 total electron domains
what will it look like with 0,1,2,3 lone pairs on the central atom

tetrahedral, trigonal pyramidal, bent, ---

8

if a molecule has 5 total electron domains
what will it look like with 0,1,2,3 lone pairs on the central atom

trigonal bipyramdial, see-saw, T-shaped, linear

9

if a molecule has 6 total electron domains
what will it look like with 0,1,2,3 lone pairs on the central atom

octahedral, square pyramidal, square planar, T-shaped

10

lone pairs on the central atom will result in a bond angle that is ____________ ideal

less than

11

ionic bonds are a ____ of electrons between a ______ (which loses electrons and becomes a _____) and a _________ (which gains electrons and becomes a _______)

transfer, metal, cation, nonmetal, anion

12

covalent bonds are the _____ of electrons between two ________, one cation and one anion

sharing, nonmetals

13

equal sharing in covalent bonds means ____
unequal sharing means _____

nonpolar (do not have opposite ends), polar

14

how do you indicate if a bond is ionic, polar, or nonpolar

ionic- >1.7
polar- .5-1.7
nonpolar- 0-.4

15

explain AXE notation

A-central atom
X- atoms bonded to central atom
E- lone pairs on central atom only
example) PF5's notation would be AX5

16

# of hybrid orbitals formed= what

# of domains on the central atom

17

what is bond polarity determined by

electronegativity difference in the bond (dipole)

18

how is molecule polarity determined

whether the dipoles cancel or if there is a resultant

19

what is the dipole?

electronegativity inbalance, represented by arrows drawn towards more electronegative element
where electrons are found within the bond

20

has a magnitude
has a value
has a direction
ex) velocity

vector

21

if dipoles cancel, you have a ______ bond
how do dipoles cancel

nonpolar
same magnitude, towards or away from each other

22

how can you tell if a bond is polar

polar bonds have at least one of these two characteristics
one or more lone pairs on center atom (dipoles will angle)
if you have different atoms connected to your center (different electronegativities)

23

double bonds only exist in ___

planes