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Ch.8 - Basic Concepts of Chemical Bonding

Chapter 8, Problem 87b

Consider the collection of nonmetallic elements O, P, Te, I, and B. (b) Which two would form the longest single bond?

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Hi everyone here we have a question asking which two of the following non metallic elements would make The shortest single bond boron, hydrogen, sulfur or browning. The shortest single bond would be formed between the two atoms, which have the smallest atomic radi, the periods to which each element belongs to our hydrogen one, boron two, sulfur three. And grooming four. The atomic radiation increases as we move to a higher period, since hydrogen and boron belongs to period one and two, they must have the smallest atomic radi among the four given elements. So the shortest single bond will be between hydrogen and boron. Thank you for watching. Bye.
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The ionic compound CaO crystallizes with the same structure as sodium chloride (Figure 8.3). (a) In this structure, how many O2- are in contact with each Ca2+ ion (Hint: Remember the pattern of ions shown in Figure 8.3 repeats over and over again in all three directions.)

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Construct a Born–Haber cycle for the formation of the hypothetical compound NaCl2, where the sodium ion has a 2+ charge (the second ionization energy for sodium is given in Table 7.2). (a) How large would the lattice energy need to be for the formation of NaCl2 to be exothermic?

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Textbook Question

Consider the collection of nonmetallic elements O, P, Te, I, and B. (a) Which two would form the most polar single bond?

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The substance chlorine monoxide, ClO(g), is important in atmospheric processes that lead to depletion of the ozone layer. The ClO molecule has an experimental dipole moment of 1.24 D, and the Cl — O bond length is 160 pm. (b) Based on the electronegativities of the elements, which atom would you expect to have a partial negative charge in the ClO molecule?

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Textbook Question

(b) Using these partial charges and the atomic radii given in Figure 7.8, estimate the dipole moment of the molecule.

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(c) The measured dipole moment of BrCl is 0.57 D. If you assume the bond length in BrCl is the sum of the atomic radii, what are the partial charges on the atoms in BrCl using the experimental dipole moment?

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