The half-life of a radioactive substance is def... - SS3 Physics Atomic And Nuclear Physics Question
The half-life of a radioactive substance is defined as:
A
The time it takes for half of the substance to decay
B
The time it takes for all of the substance to decay
C
The time it takes for the substance to reach its maximum activity
D
The time it takes for the substance to emit a gamma ray
correct option: a
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