Final answer:
Radon (Rn) is in the noble gas family of the periodic table.
Step-by-step explanation:
The noble gas family is also known as Group 18 or Group 0 of the periodic table. Noble gases are chemically inert and have a full outer electron shell, which makes them stable and unlikely to react with other elements. The element in the noble gas family among the given options is Radon (Rn).
Learn more about Noble gases