Final answer:
The noble gases include Ar (argon) and Kr (krypton). They are located in Group 18 of the periodic table and are known for their stability and low reactivity.
Step-by-step explanation:
The noble gases include the elements Ar (argon) and Kr (krypton). These gases are located in Group 18 of the periodic table and are known for their stability and low reactivity. They have a full outer electron shell, making them very unreactive and nonmetallic. The noble gases are often used in lighting, such as neon signs and fluorescent bulbs.
Learn more about Noble gases