The half-life of a radioactive isotope is 3 h. If the initial mass of the isotope were…
Physics · NEET · NTA Exams — Atoms and Nuclei
The half-life of a radioactive isotope is 3 h. If the initial mass of the isotope were 256 g, the mass of it remaining undecayed after 18 h would be:
- 4.0 g
- 8.0 g
- 12.0 g
- 16.0 g
Answer
(A) 4.0 g
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