After 85 years, 80 % of a radioactive material decays. What is the half-life?
Q: A radioactive material produces 3.522E+3 decays per minute at one time, and 5.47 h later produces…
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Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…
A: Given: Mo=200 gM=23.0 gt=1 year = 365 days
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A: Half life of the material=92.5days 75% of the material decay
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A: half life of Ni -63 t/2 = 92 years LET x half life passed (N0 /2)X =( N0 / 128 ) = (N0 /2)7 X = 7…
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Q: The half-life of a particular element is 330 days. What is its decay constant?
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A: Given in question - Half-life (T) = 1 hour Solution: Step1 - Here we will understand the concept…
Q: A nuclide whose "generic" symbol is 6430X would have protons and neutrons.
A: The generic symbol of a nuclide is given as X3064.
Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…
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Q: What percentage of a radioactive substance remains after 7.00 half-lives have elapsed?
A: Time=7 half life
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A: Half-life is the time taken by the radioactive element to become the half of the original amount as…
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A: let initial number of Nucleons= N0 remaining number of Nucleons= N =N08
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A: To the nearest hour, the radioactive half-life of the substance is 52.5hours
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Q: A radioactive sample has a decay constant of 0.219 3/minute. (a) What is its half-life? (b) If at…
A: The relation between the half life and the decay constant is T = 0.693λ The equation of…
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A: Given that:- Half life of radon-222=2.8 days
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Q: The half-life of uranium–238 is 4.5 billion years. What is the decay constant for uranium–238?
A: Calculation: The half life time of the uranium238 is 4.5 billion years.
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Q: How much mass of a decaying 1kg sample with a half-life of 3hours will be left after 1 day has…
A: Given - Initial mass of the sample Mo= 1 kg Half life of the sample T1/2 =3 hours Time period for…
![After 85 years, 80 % of a radioactive material decays. What is the half-life?
.298 yr
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