(Solved): 14. What is the name of HI(aq) ? a. Hypoiodous acid b. Iodous acid c. lodic acid d. Hydroiodic acid ...

14. What is the name of $\mathrm{HI}(\mathrm{aq})$ ? a. Hypoiodous acid b. Iodous acid c. lodic acid d. Hydroiodic acid 15. Why is the ionization energy of a group 13 element lower than that of a group 12 element from the same period? a. It is harder to remove an electron from an $s$ orbital than an electron from a p. orbital with the same principal quantum number. b. The effective nuclear charge decreases across a period making it easier to remove an electron. c. Ionization energy is lower for groups with even numbers than groups with odd numbers. d. It is easier to remove an electron from a doubly-occupied orbital than from a singly-occupied orbital. 16. Which of the following describes the bonds in ${\mathrm{NH}}_3$ (the electronegativities of $\mathrm{N}$ and $\mathrm{H}$ are 3.0 and 2.1 , respectively)? a. The bonds are polar, and the dipole arrows point towards hydrogen. b. The bonds are polar, and the dipole arrows point towards nitrogen. c. The bonds are nonpolar, and there are no dipole arrows. d. The bonds are ionic with hydrogen being the cation and nitrogen being the anion. 17. Atomic radius increases as: a. The atomic number increases. b. We move left to right across a period. c. We move top to bottom in a group. d. We move bottom to top in a group. 18. What is the electron configuration for ${\mathrm{Fe}}^{2+}$ ? a. $[\mathrm{Ar}]4{\mathrm{s}}^{2}3{\mathrm{d}}^4$ b. $[\mathrm{Ar}]3{\mathrm{d}}^6$ c. $[\mathrm{Ar}]3{\mathrm{d}}^5$ d. $[\mathrm{Ar}]4{\mathrm{s}}^{2}3{\mathrm{d}}^3$ 19. Which of the following is an ionic compound? a. ${\mathrm{CO}}_2$ b. ${\mathrm{SCl}}_6$ c. ${\mathrm{BF}}_3$ d. $\mathrm{LiBr}$