The half-life of an unstable element is 12 days

PHYSICS · Subjective · A Level · Physics · Nuclear physics · Nuclear physics

Problem

The half-life of an unstable element is 12 days. Find the activity of a given sample of this element after 20 days, given that the initial activity was 3.5 MBq.

Related theory

Radioactivity
Nuclear physics
Radioactive decay and emissions
Atomic Structure
Radioactive decay

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