nayayayab15 nayayayab15

23-05-2022
Chemistry

contestada

A radioactive isotope has 12.5% remaining after 24 days what is the half life of this isotope

- 6 days
- 3 days
- 12 days
- 8 days

Respuesta :

jsimpson11000 jsimpson11000

23-05-2022

Answer:

8 days

Explanation:

1/2 * 1/2 * 1/2 = .125 or 12.5%

three half lives in 24 days one half life = 8 days

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