Problem 37
Which of the following incorrectly shows the bond polarity? Show the correct bond polarity for those that are incorrect. a. \(^{\delta+} \mathrm{H}-\mathrm{F}^{\delta-} \quad\) d. \(\delta^{+} \mathrm{Br}-\mathrm{Br}^{\delta-}\) b. \(^{\delta+} \mathrm{Cl}-\mathrm{I}^{\delta-} \qquad\) e. \(\quad\) e. \(\quad ^{\delta+}\mathrm{O}-\mathrm{P}^{\delta-}\) c. \(\quad \delta+\mathrm{Si}-\mathrm{S}^{\delta-}\)
Problem 39
Predict the type of bond (ionic, covalent, or polar covalent) one would expect to form between the following pairs of elements. a. \(\mathrm{Rb}\) and \(\mathrm{Cl} \quad\) d. \(\mathrm{Ba}\) and \(\mathrm{S}\) b. \(\mathrm{S}\) and \(\mathrm{S} \quad\) e. \(\mathrm{N}\) and \(\mathrm{P}\) c. \(\mathrm{C}\) and \(\mathrm{F} \quad\) f. \(\mathrm{B}\) and \(\mathrm{H}\)
Problem 40
List all the possible bonds that can occur between the elements P, Cs, O, and H. Predict the type of bond (ionic, covalent, or polar covalent) one would expect to form for each bond.
Problem 41
Hydrogen has an electronegativity value between boron and carbon and identical to phosphorus. With this in mind, rank the following bonds in order of decreasing polarity: \(\mathrm{P}-\mathrm{H}\) , \(\mathrm{O}-\mathrm{H}, \mathrm{N}-\mathrm{H}, \mathrm{F}-\mathrm{H}, \mathrm{C}-\mathrm{H} .\)
Problem 42
Rank the following bonds in order of increasing ionic character: \(\mathrm{N}-\mathrm{O}, \mathrm{Ca}-\mathrm{O}, \mathrm{C}-\mathrm{F}, \mathrm{Br}-\mathrm{Br}, \mathrm{K}-\mathrm{F}\) .
Problem 44
The following electrostatic potential diagrams represent \(\mathrm{CH}_{4}\) , \(\mathrm{NH}_{3},\) or \(\mathrm{H}_{2} \mathrm{O}\) . Label each and explain your choices.
Problem 45
Write electron configurations for the most stable ion formed by each of the elements Al, Ba, Se, and I (when in stable ionic compounds).
Problem 46
Write electron configurations for the most stable ion formed by each of the elements Te, Cl, Sr, and Li (when in stable ionic compounds).
Problem 47
Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. a. \(\mathrm{Li}\) and \(\mathrm{N} \quad\) c. \(\mathrm{Rb}\) and \(\mathrm{Cl}\) b. \(\mathrm{Ga}\) and \(\mathrm{O} \quad\) d. \(\mathrm{Ba}\) and \(\mathrm{S}\)
Problem 48
Predict the empirical formulas of the ionic compounds formed from the following pairs of elements. Name each compound. a. \(\mathrm{Al}\) and \(\mathrm{Cl} \quad\) c. \(\mathrm{Sr}\) and \(\mathrm{F}\) b. \(\mathrm{Na}\) and \(\mathrm{O} \quad\) d. \(\mathrm{Ca}\) and \(\mathrm{Se}\)
