Molecular Geometry Worksheet With Answer Key Page 3
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9
10
11The positions of the bonded atoms, can be determined experimentally. 而未共用
電子對位置卻無法由實驗得知.
⇓
∴
無法由分子幾何結構得知未共用電子之位置.
之 Geometries
Table 7.3
,
,
AX
AX
AX
2
3
4
X：No. of terminal atoms
E：unshared pairs
X
Ty
Ideal bond
Molecular
Example
+ E
pe
angles
geometry
o
2
AX
Linear
180
2
,
BeF
CO
2
2
o
AX
3
Triangular
120
3
,
BeF
SO
3
3
planar
o
AX
E
<
Bent
120
2
1
,
GeF
SO
2
2
o
4
AX
Tetrahedron
CH
109
5 .
4
4
正四面體
o
AX
E
NH
<
Triangular
109
5 .
3
1
3
pyramid 三角
錐
o
AX
E
H
O
<
bent
109
5 .
2
2
2
Ex 7-5: Predict the Geometry of
+
a)
b)
c)
NH
GeF
PF
4
2
3
AX
AX
E
AX
E
4
2
1
3
1
o
o
o
鍵角
<
<
109
5 .
120
109
5 .
正四面體
彎曲
三角錐
3
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