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level: Half-Life

Questions and Answers List

level questions: Half-Life

QuestionAnswer
What is the Activity of an Nuclei?-This is simply the Number of Unstable Nuclei that can Decay in a Set Amount of Time
What is Geiger Muller Tube do?-This simply Detects the Radiation that is Emitting
What does the Half Life mean?-This is the Average Time that is Taken for the Activity, or Count Rate, to Halve -Can also be seen as Half of the Nuclei to Decay
What does a: -Short Half Life mean? -Long Half Life mean?-Short Half Life simply means the Activity Falls Quickly, as the Nuclei decays Quickly -Long Half Life simply means the Activity takes a While to fall, as the Nuclei stays Longer
So if a Nuclei has an Activity of 1000 Bq, and has a Half Life of 5 Years, how long would it take for the Activity to drop to 250 Bq?-After 1 Half life, the Activity would become 500 Bq -After 2 Half Life, the Activity would become 250 Bq -So it takes 10 Years to drop to its Quarter