Chemistry 11 Unit 8 Atoms, Periodic Table and Bonding
Worksheet 8.4
4.
3.
2.
1.
6.
5.
Predict the shapes of the following: (a) FCl
2
+
, (b) AsF
5
, (c) AsF
3
, (d) SeO
2
Predict the shapes of the following: (a) TeF
4
, (b) SbCl
6
–
, (c) NO
2
–
, (d) PO
4
3–
Predict the shapes of the following: (a) IO
4
–
, (b) ICl
4
–
, (c) TeF
6
, (d) ICl
2
–
Predict the shapes of the following: (a) CS
2
, (b) BrF
4
–
, (c) ICl
3
, (d) SeO
3
Predict the shapes of the following: (a) SbH
3
, (b) PCl
4
+
, (c) ClO
3
–
, (d) SiO
4
4–
Consider the following bonds: (i) N—S; (ii) Si—I; (iii) N—Br; using the table of electronegativities, a) b)
Determine which atom in each of the following bonds that carries the partial negative charge.
Which of the bonds is most polar?
7. Which of the following bonds is most polar? In each bond, choose the atom that carries the partial negative charge: (a) Hg—I; (b) P—I; (c) Si—F; (d) Mg—N
8. Which of the following molecules would be polar: (a) SnCl
4
, (b) AsCl
3
, (c) H
2
Se, (d) PBr
3
, (e) SbCl
5
, (f) SO
3
WS8-4 VSEPR Theory and Polarity.doc 1

Chemistry 11 Unit 8 Atoms, Periodic Table and Bonding
7.
8.
Worksheet 8.4 Answers
5.
6.
3.
4.
1.
2.
(a) Non-linear, (b) Trigonal Bipyramidal, (c) Trigonal Pyramidal, (d) Non-linear
(a) See-saw, (b) Octahedral, (c) Non-linear, (d) Tetrahedral
(a) Tetrahedral, (b) Square Planar, (c) Octahedral, (d) Linear
(a) Linear, (b) Square Planar, (c) T-shaped, (d) Trigonal Planar
(a) Trigonal Pyramidal, (b) Tetrahedral, (c) Trigonal Pyramidal, (d) Tetrahedral
Consider the following bonds: (i) N—S; (ii) Si—I; (iii) N—Br; using the table of electronegativities, a) b)
N, I, N
N–S is the most polar because it has the greatest electronegativity difference between atoms.
Si-F is most polar. I, I, F, N
Which of the following molecules would be polar: AsCl
3
, H
2
Se, PBr
3
WS8-4 VSEPR Theory and Polarity.doc 2