1
Name_K
£--+--r.--
Period Date / /
6 • Bonding &
Molecular
Structure
ELECTRONEGATIVITY
H
2.1
3 4 5 6 7 8 9
Li
Be
B C N 0 F
1.0
1.5
2.0
2.5
3.0
3.5
4.0
11
12
13
14
15
16 17
Na
Mg
AI
Si
P S
CI
1.0
1.2
1.5
1.8
2.1
2.5
3.0
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34 35
K
0.9
Ca
1.0
Sc
1.3
Ti
1.4
V
1.5
Cr
1.6
Mn
1.6
Fe
1.7
Co
1.7
Ni
1.8
Cu
1.8
Zn
1.6
Ga
1.7
Ge
1.9
As
2.1
I
,
Se
2.4
Br
2.8
37 38
39
40
41
42 43 44 45
46
47
48 49
50
51
52
53
Rb
Sr
Y
Zr
Nb
Mo
Te
Ru
Rh
Pd
Ag
Cd
In
Sn Sb
Te
I
0.9
1.0
1.2
13 1.5
1.6
1.7
1.8 1.8
1.8
1.6
1.6 1.6
1.8
1.9
2.1
2.5
55 56 57
72
73
74
75 76
77
78
79
80
81
82
83
84
85
Cs
Ba
La
Hf
Ta
W
Re
Os
Ir
Pt
Au
Hg
TI
Pb
Bi
Po
At
0.8
1.0
1.1
1.3
1.4
1.5 1.7
1.9
1.9 1.8
1.9
1.7
1.6
1.7
1.8
1.9
2.1
87 88
89
Fr
Ra
Ae
0.8
1.0
1.1
1.
In each pair
of
bonds, indicate the more polar bond and use an arrow to show the direction
of
polarity
in each bo
d.
,
+-->~
~
a)
-0
and
~C-O
C-N,
~
b)
and
(C9)-CI
~
~
Il-r
c)
and
B-S
f-8r
{J-G{
I...}
d)
and
B-1
/;
->0
~
G
o -
1)-5
/::)
~
2.
For each
of
the bonds listed below, tell which atom
is
the more negatively charged.
a)
C-N
.
elf
t~\,!-r
d-
b)
C-H
4)
C
-lJ
q G ) C-
&r
~
~
~r
b)
f -
HI>
d)
d
S
_D
d -
It
is somewhat artificial to classify bonds based
on
the differences in the electronegativities
(L1x)
of
the two
atoms. However,we will use these ranges to
do
so:
Ionic
~x>
1.7 (symbolized as
A+
and Z-)
Polar Covalent
l.7
~
~x
~
.5
(symbolized as
AM
and
Z8-)
Pure Covalent
~x<.5
(no charges)
3. For each
of
the bonds listed below, classify each bond and indicate full or partial charges,
if
any.
+-
-
J+
1'-
a)
Na-CI
;'017;"
e)
Mg-H
/,oic;c/-
COV~~Y11=
ofr
£:/-
+
b)
c-o
po/wr
Coi/c.lMf
f)
Cs-F
;{;c;r,1.1
l..---
c) +
cu-a
~h.
{~(
lila"
11AV~
[J
~
g)
CI-Cl
fvl'£.-
Coi/<~'tI-If'7.1-
+
h)
Al-CI
:C-OVlt
e,
(/oley-
Co
v •
./
G//(,;I-
0
K..
100)
d)
C-H