A particular radioactive isotope decays from 190 milligrams (mg)
to 152 mg in 15 days. Find the half life of the isotope.
Hint: Find the rate first. The half life of the isotope is
the half value of 190 mg then solve for x.
Your answer is
days.
A particular radioactive isotope decays from 190 milligrams (mg) to 152 mg in 15 days. Find...
231 A 60 mg sample of a radioactive isotope decays to 50 mg after 4.7 days. a) Determine the half-life. b) How long will it take for the amount of the isotope to decrease to 20 mg?
Please show your steps clearly. . The radioactive isotope Uranium-234 decays to Thoriu-230 with a half-life of T. Thorium 230 itself is also radioactive and decays to Radium-226 with a half-life of γ and γ > τ Although Radium-226 is also radioactive its half-life is much longer than T and γ and here we assume that it is relative stable. Consider the scenario when we start with a certain amount of pure Uranium-234, because of this chain of decays, we...
A 0.0116-g sample of a radioactive isotope with a half life of 1.3x109 years decays at the rate of 2.9x104 disintegrations per minute. Calculate the molar mass of the isotope. Enter your answer in scientific notation. (g/mol)
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An initial amount of 100 g of the radioactive isotope thorium-234 decays according to Q(t) = 100e -0.02828t where t is in years. How long before half of the initial amount has disintegrated? This time is called the half-life of this isotope. (Round your answer to one decimal place.) yr
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