Radon is a radioactive gas, commonly found in the basement of ahouse. It has a half- life of 3.8 days.
a. What is the decay constant of radon in (second)-1?
b. Ahouse basement contains initially 5.0 × 107 radon atoms. Howlong does it take for theactivity to be reduced to 0.1% of its initial value? Assume thatthe basement is sealed off so that radon gas cannot enter of leave thebasement.
c. It will take four times as long to reduce the activity to 10-4 ofits original activity?