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Posted: **Wed May 18, 2022 4:46 pm**

: 5 226 Ra Which Decays By A Emission Into 222 Rn Has An Atomic Mass Of 226 025432 U The A Lisintegration Energy Is Q 1 (24.83 KiB) Viewed 47 times

5. 226 Ra which decays by a-emission into 222 Rn, has an atomic mass of 226.025432 u. The a- lisintegration energy is Q = 4.863 MeV. Assuming the mass of the He atom o be 4.002603 u, calculate the atomic mass of 22 Rn, given 1 u = 931.5 M.V. (222.017604 )