The isotopic mass of 210 Rn 86 is 209.989669 amu. When this nuclide decays by electron capture, it emits 2.368 MeV. What is the isotopic mass of the resulting nuclide?

Respuesta :

Starting from the radon mass, add the mass of the electron, and subtract the mass attributable to the gamma radiation (931 Mev = 1 amu).