Non-Hodgkin lymphoma is broadly divided into two major groups: B-cell lymphomas (which develop from abnormal B-lymphocytes, which is most common), and T-cell lymphomas (which develop from abnormal T-lymphocytes). Lymphocytes are a type of white blood cell that helps the body fight infections.
The atomic number of radon (Rn) is 86 and the atomic weight of Rn is 222 grams/mole.
Its atomic number is 86, and its atomic mass is 222. A decay product of radium, radon is used in radiation cancer therapy. Radon is also released by rocks, soil, and groundwater and is a common source of background radiation, with an intensity that varies in different geographic areas.