asyncere13 asyncere13

21-05-2021
English

contestada

Krypton-85 has a half-life of 10.76 years. It decays into rubidium-85. Suppose
a sample contains 4 atoms of krypton-85 and 12 atoms of rubidium-85.
About how old is the sample?

Respuesta :

lopezln lopezln

25-05-2021

Answer:

It’s 21.52 years

Explanation:

I just took the test

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