Please workout question 5 ^206Po has a half-life of 2.90 yr. if initial 10 g^206Po, how...
If a radionuclide has a half-life of 10 years, how many parent nuclide atoms will be left after 10 years since the start of the decay? How many daughter nuclides will exist at that time? Assume daughter nuclides are stable. Please show explanation, Thank You
Polonium-208 is an alpha emitter with a half-life of 2.90 years. How many milligrams of polonium from an original sample of 5.00 mg will remain after 8.00 years?
Question 4 1 pts A particular radioactive isotope has a half-life of 2.90 weeks. What fraction of the original sample is left after 101.5 days? 1/8 1/64 1/32 1/16 none of these Next
A The half-life of cobalt-60 is 5.20 yr. How many milligrams of a 2.000-mg sample remains after 6.55 years? 0.837 B. 3.23 x 10-15 OC. 4.779 OD. 1.588 E. 1.163
Create a chart to work this problem. Sr-90 has a half-life of 29.1 yr. How many yrs. from now will the first half-life be completed? the second half-life? the third half life?
V Question 5 3.03 pts Suppose a radioactive isotope has a half-life t% = 99.1 hr. How long will it take for a sample of the isotope to decay to 3.0% of its original activity? a. 218 hr b. 0.0354hr c. 348 yr d. 297 hr e. 501 hr O a Ob Ос Question 6 3.03 pts A radioactive isotope has a half-life, t% = 27.3 yr How long will it take for a 3.27 mCi sample of this isotope...
The half-life of Zn-71 is 2.5 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.5 minutes has elapsed? Please show work.
Consider the following radioactive decay^234_92U rightarrow^230_90Th rightarrow^226_88Ra Where the half-life of^234_92U is 2.47 times 10^5 yr. and half-life of^230_90Th is 7.5 times 10^4 yr. When will the amount of the isotope^230_90Th attain maximum if one starts with 1.5 of^234_92U? What percent of^234_92U will decay at that time? (i) 1.852 times 10^5 years, (ii) 40.5% (i) 3.95 times 10^5 years (ii) 66.9% (i) 1.3 times 10^4 years, (ii) 3.6% (i) 1.2 years, (ii) 2.5%
please help with the following Half-Life and Activity: 4 g of radioactive material of half-life period 10 years is kept in store for 15 years. How much of material is disintegrated?
Uranium-235 has a half-life of 7.04 x 108 years. How many years will it take for 99.9% of a U.235 sample decay A. 7.08 105 yr B. 1.0 x 106 yr C. 4.7 x 10º yr D.4.9 x 109 yr * E. 7.08 109 yr