Shapes and Polarity of Polyatomic Molecules

Chapter , Problem 40E

(choose chapter or problem)

(a) Consider the $A F_{3}$ molecules in Exercise 9.27. Which of these will have a nonzero dipole moment?

The figure that follows shows ball-and-stick drawings of three possible shapes of an $A F_{3}$ molecule.

(a) For each shape, give the electron-domain geometry on which the molecular geometry is based.

(b) For each shape, how many nonbonding electron domains are there on atom A?

(c) Which of the following elements will lead to an $A F_{3}$ molecule with the shape in

(ii): $L i, B, N, A l, P, C l$?

(d) Name an element A that is expected to lead to the $A F_{3}$ structure shown in

(iii). Explain your reasoning.

(b) Which of the $A F_{4}$ molecules in Exercise 9.28 will have a zero dipole moment?

The figure that follows contains ball-and-stick drawings of three possible shapes of an

$A F_{4}$ molecule.

(a) For each shape, give the electron-domain geometry on which the molecular geometry is based.

(b) For each shape, how many nonbonding electron domains are there on atom A?

(c) Which of the following elements will lead to an $A F_{4}$ molecule with the shape in

(iii): $B e, C, S, S e, S i, X e$?

(d) Name an element A that is expected to lead to the $A F_{4}$ structure shown in (i).

Equation Transcription:

$A{F}_{3}$

$Li,\ B,\ N,\ Al,\ P,\ Cl$

$A{F}_{3}$

$A{F}_{4}$

$Be,\ C,\ S,\ Se,\ Si,\ Xe$

$A{F}_{4}$

Text Transcription:

AF_3

Li, B, N, Al, P, Cl

AF_3

AF_4

Be, C, S, Se, Si, Xe

AF_4

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