Answer
(c)
Work Step by Step
The noble gases are in group 18 of the periodic table.
Option (a) is incorrect. Nitrogen (N$_{2}$) is in group 15.
Option (b) is incorrect. Chlorine (Cl$_{2}$) is a halogen in group 17.
Option (d) is incorrect. Iodine (I$_{2}$) is a halogen in group 17.
Option (c) is correct. Xenon (Xe) is a noble gas in group 18.