Chem 1101 2014-J-3 Worksheet With Answers - The University Of Sydney - 2014 Page 16

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CHEM1101
2006-J-5
June 2006
Marks
• With respect to the molecule sketched below, answer the following questions
3
concerning the selected atoms indicated by arrows as A, B and C.
Geometry of σ Bonds about
Selected
Number of Lone
Number of σ Bonds
Atom
Pairs about the
associated with the
the Selected Atom
Selected Atom
Selected Atom
A
0
3
trigonal planar
B
2
2
bent
C
0
2
linear
2
• Identify two factors that explain the origin of the discrete energy levels of electrons in
atoms?
• The wave-like nature of electrons
• The restricted motion of the electrons caused by the electrostatic attraction
of the nucleus

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