Identify the nuclide produced when plutonium-239 decays by alpha emission: 239/9

Question

Identify the nuclide produced when plutonium-239 decays by alpha emission: 239/94Pu->4/2He+ Identify the nuclide produced when thorium-234 decays by beta emission: 239/90Th->0/-1e+ Identify the nuclide produced when fluorine-18 decays by positron emission:18/9F->0/1e+ Identify the nuclide produced when thallium-201 decays by electron capture: 201/81Tl+0/-1e->0/0radiation+?

Explanation / Answer

239 Pu ---> 4He+ +235 Uranium 234 Th ----> beta particle + 234 Protactinium 18 F ---> positoron + 18 Oxygen 201 Thalium + e- ---> 201 mercury

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