Chem 1101 2014-J-3 Worksheet With Answers - The University Of Sydney - 2014 Page 10

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CHEM1101
2010-N-5
November 2010
Marks
• Complete the table below showing the number of valence electrons, the Lewis
6
structures and the predicted shapes of the following species. Ammonia, NH
, is
3
given as an example.
Number of electron
Formula
pairs on central
Lewis Structure
Name of
atom (discounting
molecular shape
multiple bonds)
H
N
H
NH
4
trigonal pyramidal
3
H
ClF
5
T-shaped
3
3–
PO
4
tetrahedral
4

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