Why couldn't atomic nuclei exist when the age of the universe was less than 2 minutes?
Q: The radar active element carbon 14 has a 1/2 life of 5750 years as scientists determined that the…
A: Given , half life of carbon , t1/2 = 5750 years Lost carbon 14 is 5.19 % Let N0 is the initial…
Q: A hypothetical radioactive isotope has a half life of 10 minutes. If you start with 100 grams of…
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Q: Where did the heaviest elements originate?
A: The heaviest elements originate when massive stars implode and explode thus creating a supernova.
Q: If a material has a half life of 92.5 days, how long will it take for 75% of the material to decay?…
A: Half life of the material=92.5days 75% of the material decay
Q: Which type of nuclear reaction are we most reliant upon?
A: We are most reliant upon Nuclear fission.
Q: Imagine you have a cylindrical geiger counter with a diameter of 1 in positioned 2 in away from a…
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Q: Choose the BEST answer to the following. Compared with the mass of a uranium atom undergoing…
A: The energy released in a fission is given by
Q: Where did the 12 come from in the original equation? And where did the equation s=ut-1/2gt^2 come
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Q: Xenon-124 has the longest half-life of 1.8 x 1022 years. Assuming that xenon-124 was created 12…
A: Radioactive decay is the process by which an unstable nucleus becomes stable. The rate at which this…
Q: 40K decays to 40Ar with a half-life of 1.3 billion years. Argon is a gas, so 40Ar escapes into the…
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Q: 40K decays to 40Ar with a half-life of 1.3 billion years. Argon is a gas, so 40Ar escapes into the…
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Q: When a pair of hydrogen nuclei are fused to create helium, how does the mass of the resulting helium…
A: Given : Pair of hydrogen nuclei
Q: A) How much mass is left in a piece of animal skin after 17,145 years when a newly made piece of…
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Q: If carbon-14 underwent beta decay, what is the resulting nucleus?
A: Beta decay: A element which undergoes beta decay then the neutron of the atom gets converted to…
Q: Radimetric Dating Calculations:The half life of 40K is approximately 1.3 billion years, and it…
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Q: If a sample of a radioactive isotope has a half-life of 1 year, how much of the original sample will…
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Q: Give an Example of one cosmogenic nuclide (decay equation producing that nuclide), Give example of…
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Q: If a gamma ray from super nova emission has a packet of 10^20photon per one second, the wavelength…
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Q: Why didn’t atoms exist until hundreds of thousands of years after the Big Bang?
A: When the Big Bang occurred, the temperature and the density was too high, and it didn’t allow to…
Q: how much energy (in Joules) is released by Helium -4 during a nuclear reaction?
A: Given: Helium-4 Asked to find energy released during a nuclear reaction.
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- An element with an atomic mass of 57 has an isotope with an atomic of mass 58. The source of this additional mass isIn a radioactive material, fraction of active material remaining after time t is 9/16. The fraction that was remaining after t/2 is: 1) 3/4 2) 7/8 3) 4/5 4) 3/5If a sample of a radioactive isotope has a half-life of 3 years, how much of the original sample will be left at the end of:a) 3 years?b) 6 years?
- Assume the half life of some radioactive element is 100 years. After 300 years have gone by, how much of the original radioactive element is left? 1/2 O 1/4 1/8 1/16If a sample of a radioactive isotope has a half-life of 3 years, how much of the original sample will be left at the end of: 3 years? 6 years? 9 years? 15 years?Do question 4.
- Carbon-14 has a half-life of 5730 years. What mass of carbon-14 would have a decay rate of 20,000 Bq? Considering that carbon-14 decays via beta-minus radiation, ALSO write the complete nuclear decay equation.Why couldn't atomic nuclei exist when the age of the universe was less than 2 minutes?In a cyclotron facility, 106 atoms of F-18 were created. The half-life of F-18 is 110 minutes. After the target has sat and decayed for 220 minutes, how many F-18 atoms are left? 3.0 x 105 atoms 1.5 x 105 atoms 2.5 x 105 atoms 2.0 x 105 atoms