226 A radium source contains 50 mg of "88Ra in equilibrium with all its progen- Assuming 71/2 is 1602 y: (a) What is the decay constant for Ra? 226 88 (b) What is its mean life? 226 (c) How many atoms of 238Ra does the source contain, based upon its mass and assuming that 226 g = 1 mole? 88 (d) How many atoms of 226Ra does it contain, based upon its activity? How many millicuries and how many atoms of 2Rn will be present in secular equilibrium? (7₁ (e) 86 - 3 924

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Q: 88 A radium source contains 50 mg of 228Ra in equilibrium with all its progeny. Assuming T₁/2 is…

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Q: a) Write a balanced nuclear reaction for the alpha decay of 222Rn. b) The half-life of 222Rn is…

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Q: Ag. 24) Calculate the binding energy per nucleon of (Given: Rest-mass of 108 Ag = 107.905092 u.)

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A: a) Given, the daughter nuclide is 222Rn86 . In alpha decay the mass number decreases by 4 and the…

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Q: with A4> Ap. Will the two samples ever 4 have (simultaneously) the same decay rate? 12 Figure 42-18…

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Q: 10) How much material is remaining when you start with 14-g and there has been 3.25 half-lives?

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Q: 10) How much material is remaining when you start with 127-g and there has been 7.25 half-lives?

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Q: Calculating the energy released during the decay for each chain?

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A: half life (t1/2) = 5 days Activity (A) = 6400 Bq time = 10 days

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