# Chapter 8 Bonding and Molecular Structure - Study Questions - Page 337c: 46

#### Work Step by Step

a) Since O and N are in period 2 and atomic radius decreases along a period, the SiO bond is shorter than the SiN one. b) Since Si and C are in group 14 and atomic radius increases down a group, the CO bond is shorter than the SiO one. c) Since F and Br are in group 17 and atomic radius increases down a group, the CF bond is shorter than the CBr one. d) Since bond length decreases with bond order, the $C\equiv N$ is shorter than the C-N bond.

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.