jeremiahphillip8959 jeremiahphillip8959
  • 15-04-2022
  • Chemistry
contestada

A 60-g sample of radioactive isotope is measured after two half-lives have passed. What pair of percentages describes the sample after two half-lives?.

Respuesta :

jsimpson11000 jsimpson11000
  • 26-04-2022

Answer:

25% is left   15 gm

Explanation:

(1/2)^2 = 25%

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