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

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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