Chemistry

posted by .

which of the following 10 g samples will decay the most in 28 days?
a.P-32
b.Kr-85
c.Fr-220
I-131

the answer is c.Fr-220 but i want to know why, please help

  • Chemistry -

    Look up the half lives. The one with the shortest half live will decay the most.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. logic

    we thought the answer was 440. 1320/6=220. Then 1320-220=1100. then 1100/5=220. then subtract 1100-220=880 nd so on...does that make sense?
  2. HCA 220

    I need help with this capstone discussion question for HCA 220 week 9. The following questions are:" What are the most important concepts you have learned in this course?
  3. chem

    Write a partial decay series for Rn-220 undergoing the following sequential decays: á (alpha decay), á, â(beta decay), á. (Enter the mass number in the first raised box, the atomic number in the second lower box and the symbol …
  4. chemistry

    which of the following 10 g samples will decay the most in 28 days?
  5. chemistry

    The disintegration of a radioisotope, such as I-131 to Xe-131, is another example of a first-order reaction. It has a half-life of 8.0 days. I-131 -> Xe-131 + e If you start with 1.40 g I-131, how many grams of I-131 will be left …
  6. chemistry

    The disintegration of a radioisotope, such as I-131 to Xe-131, is another example of a first-order reaction. It has a half-life of 8.0 days. I-131 -> Xe-131 + e If you start with 1.40 g I-131, how many grams of I-131 will be left …
  7. Algebra

    A defective nuclear reactor is leaking radioactive iodine-131. The rate of decay of iodine-131is given by the function defined by A(t)=A_0 e^(-0.087t), where t is time in days. How long will it take any quantity of iodine-131 to decay …
  8. Exponential Growth and Decay

    Doctors use iodine-131 to treat some forms of cancer. The half-life of iodine-131 is 8 days. A patient receives a treatment of 12 millicuries. A millicurie is a unit of radioactivity. How much iodine-131 remains in the patient 16 days …
  9. Math

    What is twice the sum of 124 and 96? Is this right 124+96=220 220+220=440 answer is 440
  10. Chemistry

    How long will it take for a 18.0-g sample of iodine-131 to decay to leave a total of 2.25 g of the isotope?

More Similar Questions