Which of the following is the correct definition of 'half-life'?
Question
Which of the following is the correct definition of 'half-life'?Options
A) the average life-time of a radioactive material
B) the time it takes a radioactive material to decay to half of its original quantity
C) half the period a radioactive material decays completely
D) half of the decay constant
E) the decay constant times life-time
Related Lesson: Summarizing Half-Life and Activity | Radioactivity and Nuclear Physics
The correct answer is B.
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