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Example
Fourteen : Al2Cl6
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| |
|
|
|
+
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Valance
electrons on A
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3
|
|
+
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Sigma
electrons from B
|
3
|
|
-
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Pi
electrons from A
|
0
|
|
+
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Donated
dative electrons
|
2
|
|
+/-
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Charge
on molecule
|
0
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| |
|
|
|
=
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Total
|
8
|
| |
|
|
|
/2
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Number
of negative centres
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4
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|
-s
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Number
of lone pairs
|
0
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| |
|
|
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Therefore
the shape is Tetrahedral for each Al atom
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