Shapes and Polarity of Polyatomic Molecules (Section)
(a) Consider the AF3 molecules in Exercise Which of these will have a nonzero dipole moment? (b) Which of the AF4 molecules in Exercise will have a zero dipole moment?
The figure that follows shows ball-and-stick drawings of three possible shapes of an AF3molecule. (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 AF3 molecule with the shape in (ii): Li, B, N, Al, P, Cl? (d) Name an element A that is expected to lead to the AF3 structure shown in (iii). Explain your reasoning.
The figure that follows contains ball-and-stick drawings of three possible shapes of an AF4molecule. (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 AF4 molecule with the shape in (iii): Be, C, S, Se, Si, Xe?
(d) Name an element A that is expected to lead to the AF4 structure shown in (i).,
Problem 41EShapes and Polarity of Polyatomic Molecules (Section)(a) Consider the AF3 molecules in Exercise Which of these will have a nonzero dipole moment(b) Which of the AF4 molecules in Exercise will have a zero dipole momentThe figure that follows shows ball-and-stick drawings of three possible shapes of an AF3molecule. (a) For each shape, give the electron-domain geometry on which the moleculargeometry is based., (b) For each shape, how many nonbonding electron domains are there onatom A (c) Which of the following elements will lead to an AF3 molecule with the shape in (ii):Li, B, N, Al, P, Cl (d) Name an element A that is expected to lead to the AF3 structure shown in(iii). Explain your reasoning.The figure that follows contains ball-and-stick drawings of three possible shapes of an AF4molecule. (a) For each shape, give the electron-domain geometry on which the moleculargeometry is based., (b) For each shape, how many nonbonding electron domains are there onatom A (c) Which of the following elements will lead to an AF4 molecule with the shape in (iii):Be, C, S, Se, Si, Xe(d) Name an element A that is expected to lead to the AF4 structure shown in (i)., Step-by-step solution Step 1 of 9\nIf there is a difference in electronegativity between atoms bonded together, the atom with moreelectronegativity will get partial negative charge as it attracts a shared pair of electrons towardsitself and atom with less electronegativity will acquire positive charge.Hence, the bond between atoms becomes polar. For polar bonds, direction of the dipolemoment is always towards the more electronegative atom. Dipole moments added as vectorsalso, for two polar bonds, with opposite direction of dipole moment the resultant dipole will bezero as both get canceled out. It is represented by symbol .The direction of dipole moment is represented as follows:Here, the head of the arrow is towards the more electronegative atom and shows direction ofdipole moment.
