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.
Radon is a naturally-occurring radioactive odorless gas generated by the natural breakdown (radioactive decay), radon-222 of uranium-238 radioactive decay, radon-220 of thorium-232. Usually present in igneous rock and soil, the odorless gas also may be at significant levels in groundwater solution.