## Chemistry: The Science in Context (4th Edition)

The halogens are in group 17 of the periodic table. Option (a) is incorrect. Nitrogen (N$_{2}$) is in group 15. Option (c) is incorrect. Xenon (Xe) is a noble gas in group 18. Option (d) is incorrect. Hydrogen (H$_{2}$) is in group 1. Option (b) is correct. Chlorine (Cl$_{2}$) is a halogen in group 17.