Every use of radioactivity needs the right kind of source. The radiation type must penetrate the right amount, and the half-life must suit the job: long-lasting for a gauge that runs for years, but quick to fade for something used inside a patient. Choose the type and the half-life to match each job.
MissionChoose a source for: smoke alarm.Round 1Streak 0Best 0
Type:
For this job, your chosen half-life is:
Pick a radiation type and a half-life for the job, predict, then test it.
chosen typenone
chosen half-lifeyears
type suits the job??
half-life suits the job??
The type sets how far the radiation travels; the half-life sets how long the source is useful.