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Chapter 11: Q44E (page 519)
Find Q for the decay of beryllium-10
The factor is .
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Calculate the net amount of energy released in the deuterium-tritium reaction,.
Certain nuclei with half-lives between days and a few years are found in nature in small abundances that do not change at all over many, many years. How is this possible? (Hint: Natural uranium and thorium have very long half lives.)
Given initially 40mg of radium-226 (one of the decay products of uranium-238), determine,
(a) The amount that will be left after 500years.
(b) The number of 伪 particles the radium will have emitted during this time, and
(c) The amount of kinetic energy that will have been released.
(d) Find the decay rate of the radium at the end of the 500 year.
Given initially 100 g of Plutonium-239, how muchtime must pass for amount to drop to ?
Question:The semiempirical binding energy formula has four terms. Suppose we have a nucleus with 18 protons and 22 nutrons. For each term in the formula, indicate (without calculation) whether adding one more proton would cause an increase or 3 decrease and explain why it should have this effect. Focus on the underlying idea.
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