Carbon dating can be applied to organic materials up to 5.0 × 104 years old. What percentage of the original 14C is present in a sample after this much time? The half-life of 14 Cis 5730 yr. O 0.89% O 0.24% O 0.0011% O 8.7%

Q: The half-life of 218Po is 3.1 minutes. How much of a 146 gram sample remains after 0.40 hours? 130…

A: Since the decay reactions are first order reactions And we know that the relationship between the…

Q: The number of radioactive nuclides in a sample decays from 3.80 x to 1020 19 9.50 x 10 in 58.0…

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Q: The half-life of strontium-87 is 2.8 h. What percentage of this isotope will remain after 8 h and 24…

A: Radioactive decay is the breaking of unstable nuclei into stable ones by emitting radiation. These…

Q: 137 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

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Q: Halfnum-172 (172Hf) has a half- life of 1.87 years. How much is left of a 100 mg sample after 5…

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Q: If a tree dies and the trunk remains undisturbed for 1.770 × 10⁴ years, what percentage of the…

A: The objective of this question is to find out the percentage of the original 14C (Carbon-14) that is…

Q: Potassium-Argon dating is a common method of determining the age of rocks based on the time they…

A: Solution:  In this problem we have to calculate the time peroid in years

Q: 5. Carbon-11, used in medical imaging, has a half-life of 20.4 min. The carbon-11 nuclides are…

A: Answer: Relation between quantity of radioactive substance and n number of half lives is shown…

Q: A sample of a newly discovered element, West Virginium, has a half-life of 451 years.  How long…

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Q: Consider a radioisotope "X" with a half-life of 46.1 years. Determine (to the nearest 0.1 mg) how…

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Q: Strontium-90 is present in the fallout produced by nuclear weapons testing in the atmosphere. Sr-90…

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Q: radidactive research, particulary in studies mass (in mg) oudsoud g of Na, 32PO, after 40.0 days?…

A: Radioactive decay follow first order kinectics. Half life = 14.3 days

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

A: Chemical changes in which species amount varies linearly along with time basically obey"first-order…

Q: The half-life of 129I is 1.72 x 107 years. Consider a sample that contains 2.39 x 106 atoms of this…

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Q: The nuclide 9038Sr is one of the extremely hazardous species in the residue of nuclear power…

A: First the rate constant value is calculated.

Q: 24 g of an unknown radioactive substance decays to 1.5 g after 180 seconds. What is the half-life of…

A: To solve this problem we will use the first order chemical kinetics half life equation .

Q: Radioisotope X has a half-life of 4.0 h. Based on the figure below, if the original sample of the…

A: Half life (t1/2) :-  The time required for the concentration of reactant to reduce to half of its…

Q: The first-order decay of radon has a half-life of 91.75 hours. How many grams of radon remain after…

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Q: 137 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Given half life = 30.2 years initial Concentration = 100 g Concentration at time t = 0.900 g

Q: A piece of fossilized wood has a carbon-14 radioactivity that is 1/4 that of new wood. The half-life…

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Q: Carbon-11 is a radioactive istope of carbon. Its half-life is 20.3 minutes. What fraction of the…

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Q: Another form of radiometric dating is potassium-argon dating, which tracks the ratio of Ar-40 to…

A: Any reaction following "first-order reaction", that reactions rate always relies over single…

Q: A sample of a newly discovered element, West Virginium, has a half-life of 288 years.  How long…

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Q: The isotope 166-Yb decays by electron capture with a half-life of 57 hrs. What percentage of the…

A: We have to calculate the percentage of isotope left

Q: If a tree dies and the trunk remains undisturbed for 1.375 × 10⁴ years, what percentage of the…

A: Radioactive decay follows first-order kinetics. The half-life of the first-order reaction does not…

Q: Carbon 14 decays to carbon12. The half-life of the C14 isotope is 5730 years. 3000 years after an…

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Q: A sample of sodium thiosulfate, Na2sO3 , contains sulfur-35. Determine the mass of 35S in the sample…

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Q: What is the half-life of the isotope with the decay profile shown here? Half-life definition-the…

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Q: I 3. All radioactive decay processes follow first-order kine - ics. What does this mean? What…

A: The statement that all radioactive decay processes follow first-order kinetics means that the rate…

Q: Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the…

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Q: A radioactive parent isotope with 600 atoms, After the decay, 450 daughter atoms were produced.…

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Q: You analyze a sample of a meteorite that landed on Earth and find that 15/16 of the uranium-238…

A: The question is based on the concept of chemical kinetics. we have been given a radioactive material…

Q: The 1st-order decay of a particular radioactive element has a half-life of 1.234 days. How many…

A: Given information, Half-life = 1.234 days Time (t) = 5.67 days Initial mass = 891.0 grams

Q: If a tree dies and the trunk remains undisturbed for 1.775 × 10⁴ years, what percentage of the…

A: Given-> Half life = 5730 year  Time = 1.775 × 104 year.

Q: Ruthenium-106 (106Ru) is used to treat melanoma in the eye. This isotope decays by β– emission with…

A: Radioactive decay is identified as a process during which an unstable nuclide of an atom changes to…

Q: Imagine you collected a volcanic rock while on vacation to Hawaii and you want to know how old it…

A: GIVEN: Amount of parent nuclei (U-234) = 4 micrograms Amount of daughter nuclei (Th- 230) = 124…

Q: Isotope X has a half-life of 71.8 years. If a sample initially contains 676. mg of X, what mass of X…

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Q: 187 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

A: Half life means time takwen by the sample to reachhalf of its concentartion.  Remains afetr t time =…

Q: 10. The half-life of tritium (hydrogen-3) is 12.3 years. If 48.0 milligrams of tritium is released…

A: 10. Given,Half-life of tritium Hydrogen-3 = 12.3 yearsTritium released from a nuclear power plant…

Q: plutonium 239 produced in breeder reactors has a half-life of 24100 years how long will it take for…

A: Answer: Time for 10% decay of Pu-239 is 3665.175 years

Q: 9) What is the age of mummified primate skin that contains 6.25% of the original quality. of 14C?…

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Q: 137 Cs has a half-life of 30.2 years. How many years will it take for a 100.0-g sample to decay to…

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Q: Strontium-90 is produced during the nuclear fission of uranium-235 and is part of nuclear fallout…

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Q: After 42 years, what mass remains of a 100.0 g sample of a radioactive isotope with a half-life of…

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.