bcruz26071 bcruz26071
  • 12-04-2022
  • Physics
contestada

The half life of uranium-235 is 4. 5 billion years. If 0. 5 half-lives have elapsed, how many years have gone by?


a. 9 billion

b. 2. 25 billion

c. 4. 50 billion

d. 4. 0 billion

Respuesta :

mactaggerta mactaggerta
  • 19-04-2022

Answer:

2.25 billion years

Explanation:

i am smort

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