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Electronegativity detailed notes
- Module
- Physical chemistry
- Institution
- OCR
Detailed notes on physical chem electro negativity. Included power point slides and diagrams and detailed explanations
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Elections are not fixed in placeExplaining it (OH)
·
In OH bonds Oxygen has a higher nuclear charge
,
it has which has one
as 8 protons than hydrogen
Proton in the .
nucleus
Although and also higher
shielding
a
Oxygen greater
·
has
Atomic radius so the distance between the nudeus and
Shared pairs of electrons is greater
.
th
However nuclear charge of oxygen overrides
strong
·
the
the fact it has greater atomic radius
a and more Shielding ,
meaning it has higher electronegativity
.
Smarks
·
Draw the snape
name
give
·
·
give angles
not polar
State if Polar or
1) Soz
non linear
2 bonding pairs
I lone pair 3) Cha HG +
Tetrahe
It
+
electrons G +
YS
I
- 50
pulled in that C 7109
j
.
-
S - direction - -
#Gt
-
S- - g 8
-
--
-
T
- -
--
-
H 5+ -
D - 117 58 .
1
8+
-
n
angle = 117 . go Y have a t side Dono angle = 109 .
90
molecule
polar
Polar and-side non
~
2)
4)
NHz trigonal pyramidal H25
C
bonding pairs
3
bonding pairs 2
,S
Btz
Sbonding pairs
& lone pairs
trigonal planar
+ 8
-
↑ 120" as it
B) include oach
Y&
+-
Y
&
Shows which
side is
+
5-
-f 5 -
Positive
and which
side is negative
bond 120
angle =
non polar ~
--6
S
O' o
>
-- >
-
3
S S
.
2
//
C
S &T-
> -
1 7 .
-
(a) electronegativity -s
the power of the atom to attract the electron densi
towards it If
, Electronegativity and bond polarity specs
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