shachandaavyph shachandaavyph

28-10-2016
Physics

contestada

What fraction of a given sample of radioactive nuclide remains after four half lives??

Respuesta :

scme1702 scme1702

02-11-2016

After each half life, the amount is halved.
After n half lives, the remaining fraction is
1/(2ⁿ)
After four half lives:
1/2⁴
= 1/16 of the original amount

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