chasebrown232 chasebrown232
  • 15-08-2019
  • Geography
contestada


If a substance has a half-life of 10 million years, what fraction of the atoms
remain after 20 million years?

Respuesta :

gstahovec
gstahovec gstahovec
  • 15-08-2019
answer is 1/4 of the atoms

at 0 years it would be the full amount (X)

at 10 million years you have half: X/2

at 20 million years you have 1/4 because: (X/2)/2 will equal 1/4
Answer Link
tejshree0829 tejshree0829
  • 10-04-2021

Answer: 1/4

Explanation:

Answer Link

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