Chromium-51 is used in imaging red blood cells and has an effective half-life of 27 days. If a dose with an activity of 24 μCi is given to a patient, how long will it take for the patient to have less than 3 μCi present?
Express your answer as an integer.

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules