Mathematics: Radium-226 is a metal with a half-life of 1600 years. if you start with 1 kilogram of radium-226, how much will remain after 20,000 years?

Radium-226 is a metal with a half-life of 1600 - id22616004593166, angelricardoblp8kwg3

Ответ:

21ltilley

15.01.2022

Ending Amount = Beginning Amount / 2^n
where 'n' = # of half lives
n = 20,000 / 1,600 = 12.5 half-lives

Ending Amount = 1 kg / 2^12.5
Ending Amount = 1 kg / 5,792.6
Ending Amount = 0.00017263 kilograms = 0.17263 grams

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Ответ:

haleygreene3728

23.09.2021

Mathematics

It’s the first 1 this to easy I’m in high school

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Radium-226 is a metal with a half-life of 1600 years. if you start with 1 kilogram of radium-226, how much will remain after 20,000 years?

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