Three main group elements, X, Y and Z, from three different groups in the Periodic Table, each form a neutral trifluoride, i.e. XF3, YF3 and ZF3. (a) To which three groups of the Periodic Table could the elements X, Y and Z belong? Are any of these atoms X, Y or Z hypervalent in the trifluorides formed? (b) Use VSEPR theory to deduce the shapes of the molecules XF3, YF3 and ZF3, showing full working, and sketch these shapes (c) Only two of the three trifluorides have a non-zero dipole moment. For these molecules to which groups of the Periodic Table do the central atoms belong?
Three main group elements, X, Y and Z, from three different groups in the Periodic Table, each form a neutral trifluoride, i.e. XF3, YF3 and ZF3. (a) To which three groups of the Periodic Table could the elements X, Y and Z belong? Are any of these atoms X, Y or Z hypervalent in the trifluorides formed? (b) Use VSEPR theory to deduce the shapes of the molecules XF3, YF3 and ZF3, showing full working, and sketch these shapes (c) Only two of the three trifluorides have a non-zero dipole moment. For these molecules to which groups of the Periodic Table do the central atoms belong?
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Chapter9: Ionic And Covalent Bonding
Section: Chapter Questions
Problem 9.29QP
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Three main group elements, X, Y and Z, from three different groups in
the Periodic Table, each form a neutral trifluoride, i.e. XF3, YF3 and
ZF3.
(a) To which three groups of the Periodic Table could the elements
X, Y and Z belong? Are any of these atoms X, Y or Z
hypervalent in the trifluorides formed?
(b) Use VSEPR theory to deduce the shapes of the molecules XF3,
YF3 and ZF3, showing full working, and sketch these shapes
(c) Only two of the three trifluorides have a non-zero dipole moment.
For these molecules to which groups of the Periodic Table do the
central atoms belong?
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