If the half-life of a radioactive particle is 1 hour, what amount will remain after 3 hours if the initial amount is 1 × 10⁶?
University of Ilorin CHM101 2026-exam past question
- 5.0 × 10⁵
- 2.5 × 10⁵
- 1.25 × 10⁵
- 6.25 × 10⁴
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