Description : What is the chemical sign of radon and what are the main properties of this substance? Maybe you can write something about the use of radon?
Last Answer : Radon chemical symbol: Rn. Main physical properties of radon: Number: 86 Electronic structure: [Xe] 4f145d106s26p6 Boiling point: -61.7 ° C Discovery time: 1900. Atomic mass: 222 u Number of electrons per shell: 2,8,18, 32.18.8