almanzajosselyn almanzajosselyn

03-05-2021
Physics

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According to the graph, how many atoms would remain after two half-lives?

20 atoms

80 atoms

40 atoms

50 atoms

According to the graph how many atoms would remain after two halflives 20 atoms 80 atoms 40 atoms 50 atoms class=

Respuesta :

03-05-2021

Answer:

Let No be initial no of atoms

N = N0 / 2 after 1 half-life

N = N0 / 4 after 2 half-lives

So after 2 half-lives 20 of the 80 atoms remain

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