**End Question: **

If a sample of a radioactive isotope has a half-life of 1 day, how much of the original sample will be left at the end of the second day? And the third day?

**HEWITT DREW IT
**

128. Radioactive Half-Life

Hewitt’s personal encounter with radioactivity and its influence; half life explained

**End Question: **

If a sample of a radioactive isotope has a half-life of 1 day, how much of the original sample will be left at the end of the second day? And the third day?