Half-Life
 

Half-Life problem 12


When a radioactive isotope is set up close to a counter, a count rate of is obtained. The table shows the count rate from the isotope over a three-year period.




What is the half-life of the isotope?


  • less than 1 year

  • more than 1 year but less than 2 years

  • more than 2 years but less than 3 years

  • more than 3 years


 

main author and content editor: Jamiu Amusa