The half-life of radium-226 is 1600 years. Suppose we have a 22-mg sample presently. (a)  How much of the sample will remain after 4000 years? (b)  After how long will only 18 mg of the sample remain? SHOW ALL WORK WITH EQUATIONS

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A: Given, the half-life of Krypton-79 is 34.50 hthe amount of radioisotop left after 138.0 h is 54.25…

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A: Number of half lives = 50001250 = 4 100%  →1250 years 50%  →1250 years 25% →1250 years 12.5 % →1250…

Q: If 50% (1/2)of a radioactive element remains after 4000 years, what is the half-life

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Q: The half life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain…

A: given :-  initial amount of sample = 500 mg  half life = 1590 years  To calculate :-  amount of…

Q: The half-life of 18F, which is utilised in medical imaging, is 110 minutes. After 300 minutes, what…

A: Given half life = 110 minutes time = 300 minutes

Q: The half-life of radium-226 is 1600 years. How long will it take for 10.0 mg of radium-226 to decay…

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Q: Use the radioactive decay curve of iridium-192 to answer the three questions A. If the initial…

A: Radioactive decay is the procedure in which the energy of an unstable atomic nucleus falls by…

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A: Solution :      The half-life of a reaction is defined as the time required to reduce the…

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Q: The half-life of 123I is 13 hr.  How much of a  64 mg sample of 123I is left after 26 hours?

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Q: The half life of radium -226 is 1590yrs . If a sample contains 400mg, how many mg will remain after…

A: Given;

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A: Given t= 28.8 years. t1/2 = ?

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Q: The half-life of Palladium-100 is 4 days. After 24 days a sample of Palladium-100 has been reduced…

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Q: The half life of 123I is 13 hr.  How much of a 64 mg sample of 123I is left after 26 hours?

A: Given,Half life of 123I is 13 hr

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Q: The half-life of Radium-226 is 1590 years. If a sample contains 300 mg, how many mg will remain…

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A: An exponential decay can be described by the formula:

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A: Given: Initial amount, a=79 g The final amount, a-x=37 Time =37.9 yr Rate constant=? half-life =?

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Q: he half-life of chromium-51 is 28 days. If the sample contained 510 grams, how much chromium would…

A: Given that

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A: Given time = 6400 years M/M० = 1/16

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A: The radioactive decays follow first order kinetics.  The half life of the element is defined as the…