Chemistry
posted by Julie .
The isotope caesium137, which has a half life of 30 years, is a product of neuclear power plants. How long will it take for the amount of this isotope in a sample of caesium to decay to one sixteenth of its original amount. Explain answer
30 years 1/2
60 years 1/4
90 years 1/8
120 years 1/16????
IS this right
looks right to me.
Respond to this Question
Similar Questions

science
Please help me with this question.... The isotope caesium137, which has a halflife of 30 years, is a product of nuclear power plants. How long will it take for the amount of this isotope in a sample of caesium to decay to onesixteenth … 
DrBob222
On Monday you helped me to understand and answer the one question, but I am not too sure if they want all the calculations that you answered... regretably, I am still a bit lost with these! Below is the question as it is printed: The … 
Chemistry  Isotopes
The isotope caesium 137 has a half life of 30 years. How long will it take for the amount of this isotope in a sample of caesium to decay to one sixteenth of its original amount? 
chemistry
The isotype caesium 137, which has a half life of 30 years, is a product of nuclear power plants. How long will it take for the amount of this isotype in a sample of caesium to decay to onesixteenth of its original amount? 
s103
the isotope caesium 137, which has a half life of 30 years, is a product of nuclear power plants. How long will it take for the amount of this isotope in a sample of caesium to decay to one sixteenth of its original amount? 
chemistry
the isotope caesium137 has a half life of 30 years how long will it take for the amount of this isotope in a sample of caesium to decay to 1/16th of its origional amount. thanks amountremaining=oriinalamount(1/2)^time/timehalflife. … 
Chemistry
Gallium65, a radioactive isotope of gallium, decays by first orderkinetics. The halflife of this isotope is 15.2 min. How long would it take for 7/8 of a sample of this isotope to decay? 
chemistry
caesium+water>caesium hydroxide caesium+oxygen>caesium oxide are these equation right? 
college
a certain radioactive isotope has a half life or 850 years.how many years would it take for a given amount of this isotope to decay to 70% of that amount? 
Physical Science
An isotope of radon gas, Rn222, undergoes decay with a halflife of 3.8 days. How long does it take for the amount of Rn222 to be decreased to onesixteenth of the original amount?