Krypton and Radon are both gases that are found in the atmosphere. Krypton is a noble GAS that is colorless, odorless, and tasteless. Radon is a radioactive GAS that is colorless, odorless, and tasteless. Both gases are used in various industries, such as lighting, medical imaging, and nuclear power. Krypton and Radon are also used in research and development, as they can be used to study the properties of other elements.