The chemical symbol for radon is Rn. Radon is a colorless, odorless, and tasteless noble gas, classified as element 86 on the periodic table. It is produced naturally by the decay of uranium and is commonly found in soil, rocks, and groundwater. Due to its radioactive properties, radon can pose health risks when it accumulates in poorly ventilated indoor spaces, leading to increased exposure to radiation. This has made radon testing important in homes and buildings, particularly in regions with high natural uranium content. Awareness and mitigation practices can help reduce health hazards associated with radon exposure.