Radium-226 Decays into Radon-222 Plus an Alpha Particle

question 74

Multiple Choice

Radium-226 decays into radon-222 plus an alpha particle. How much energy is released in this process? 1 u = 931.494 MeV/c². The relevant mass values are: , 4.002603 u; , 222.017570 u; , 226.025402 u.

• A)4.24 MeV
• B)3.76 MeV
• C)4.87 MeV
• D)5.05 MeV
• E)5.39 MeV

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