Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount remains after 340 years? (Round your answer to two decimal places.)

Q: Find the half-life of a radioactive substance that decays by 4% in 3 years. (Round your answer to…

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Q: A wooden artifact from an ancient tomb contains 60 percent of the carbon-14 that is present in…

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Q: A wooden artifact from an ancient tomb contains 45 percent of the carbon-14 that is present in…

A: Let the decay model for wooden artifact is: T=Toe-kt……1 where T=Present quantity of…

Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

A: Equation governing the radioactive decay is: A = A0e-kt When t = 1,599 then A = A0 / 2 (this is by…

Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: The general formula for radioactive decay of the Carbon-14 in terms of half life is,…

Q: A wooden artifact from an ancient tomb contains 30 percent of the carbon-14 that is present in…

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Q: A radioactive substance has a half-life of 29 years. What percent remains 80 years after being…

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Q: 11) The half-life of silicon-32 is 710 years. If 30 grams is present now, how much will be present…

A: Given data : Ao=30 gmp =710 years t= 300 yearsLet "A" be the amount after 300 yearsA=?

Q: Suppose a sample of a radioactive substance weighs 30 mg. One year later, the sample weighs 27.5 mg.…

A: Since, it is given that a sample of substance weighs 30 mg. After one yearlater the sample weighs…

Q: The half life of a radioactive sample is 50 days. How much of a 800 mg sample remain after 1 year?…

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Q: The half-life of a certain radioactive substance is 9 years.  What is the yearly decay factor? Round…

A: The formula for exponential decay or growth function is given by: A = A0ekt Here, A = final amount…

Q: A wooden artifact from an ancient tomb contains 25 percent of the carbon-14 that is present in…

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Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A: I have stated the used formula in the solution.

Q: Suppose a sample of a radioactive substance weighs 34 mg. One year later, the sample weighs 25.5 mg.…

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Q: The​ half-life of​ silicon-32 is 710 years. If 40 grams is present​ now, how much will be present in…

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Q: If radio active carbon-14 has a half -life of 5750 years ,what will remain of one gram after 3000…

A: The formula for the half-life is given by Nt=N012tt12 where N(t) is the amount of substance…

Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

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Q: The half-life of the radium isotope Ra-226 is approximately 1,599 years. What percent of a given…

A: Given data: The half life is t1/2=1599 years. The time taken t=200 years.

Q: A wooden artifact from an archaeological dig contains 70 percent of the Carbon-14 that is present in…

A: Given:wooden artifact=70% of carbon-14half-life of carbon-14 =5730 yearswe know that radioactive…

Q: A wooden artifact from an ancient tomb contains 25 percent of the carbon- 14 that is present in…

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Q: An unknown radioactive element decays into non- radioactive substances. In 240 days the…

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Q: The half-life of a radioactive radium is 1650 * years, what percentage of the amount present now…

A: Here first we find rate of decay rate using half life formula t12=-1rln12wheret12=half lifer= decay…

Q: A wooden artifact from an ancient tomb contains 30 percent of the carbon-14 that is present in…

A: Given, Initial quantity of carbon-14=N(0)= 100% Quantity of C-14 remaining=N(t)= 30% Half-life of…

Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A: We have to find how long ago, to the nearest year, was the artifact made.

Q: A wooden artifact from an ancient tomb contains 50 percent of the carbon-14 that is present in…

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Q: A wooden artifact from an ancient tomb contains 60 percent of the carbon-14 that is present in…

A: Given:-Carbon contains 60% of its initial value  First we find the vale of decay rate from half time…

Q: 10) The half-life of silicon-32 is 710 years. If 40 grams is present now, how much will be present…

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Q: The half-life of radioactive strontium-90 is approximately 31 years. In 1963, radioactive…

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Q: wooden artifact from an ancient tomb contains 25 percent of the carbon-14 that is present in living…

A: We have given that a wooden artifact tomb contains 25 percent of the carbon-14 that is present in…

Q: act from an ancient tomb contains 40 percent of the carbon-14 that is present in w long ago, to the…

A: I have appended the formula used in the solution part

Q: A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years. How much of the…

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Q: A wooden artifact from an ancient tomb contains 40 percent of the carbon-14 that is present in…

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Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: Radioactive decay

Q: Radioactive radium has a half-life of approximately 1599 years. What percent of a given amount…

A: NOTE: Refresh your page if you can't see any equations. . for the half-life, use the formula here…

Q: The half-life of radioactive radium (226Ra) is 1599 years. What percent of a present amount of…

A: Given      Hlaf life of radioactive radium is 1599 year .    ⇒ t12=1599Period of time ,t=525 years…

Q: Nuclear engineering If radium has a half-life of 1600 years, how much of 100 mg will re- main after…

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Q: Suppose a sample of a radioactive substance weighs 34 mg. One year later, the sample weighs 25.5 mg.…

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Q: A wooden artifact from an ancient tomb contains 25 percent of the carbon-14 that is present in…

A: For the given wooden artifact which contains 25 % of C-14 half life is 5730 years  Number of years…

Q: An article on the "Iceman" stated that the frozen corpse was 5,000 to 5,500 years old. Assuming the…

A: Given data: The given time is t=5,200 years. The given half lifetime is t1/2=5,730. The expression…

Q: Radioactive radium has a half-life of approximately 1599 years. The initial quantity is 15 grams.…

A: Given that a radio-active radium has a half-life of approximately 1599 years and initial quantity is…

Q: A substance decays according to the formula Q = 72(0.5)*, where t is in hours. (a) What is its…

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Q: Assume a quantity decreases by 7.5% in 5.3 hours. What is the half-life of the substance? hours

A: Calculating the half life of the substance using the given conditions

Q: After 245 years half of a sample of radioactive element remains. What percent of the sample remain…

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Q: A wooden artifact from an ancient tomb contains 50 percent of the carbon-14 that is present in…

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Q: Suppose a sample of a radioactive substance weighs 30 mg. One year later, the sample weighs 29.5 mg.…

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Q: The​ half-life of​ silicon-32 is 710 years. If 40 grams is present​ now, how much will be present in…

A:

Q: The decay rate of a certain radioactive isotope is 13% per year. a) What is its half-life? Round to…

A: (a) Given that, the decay rate of a certain radioactive isotope is 13% per year. Let the initial…

Q: A wooden artifact from an ancient tomb contains 50 percent of the carbon-14 that is present in…

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Q: A sample of an isotope decayed to 77.3% of its original amount after one year. What is the half-life…

A: Radioactivity phenomena follow first kinetics: so,    Rate=kA1      k=constant by solving this…

Q: The half-life of the radium isotope Ra-226 is approximately 1,599 years. What percent of a given…

A: Formula: y=Cekt where y is the amount of radioactive radium at time t, k is the decay constant, and…