Pe4trushguti Pe4trushguti

15-08-2016
Mathematics

contestada

What fraction of a given sample of radioactive nuclide remains after four half lives?
A. half-life: 1/2 left
B. half of that, or 1/4
C. half of that, or 1/8
D. half of that, or 1/16

Respuesta :

mpanderla95 mpanderla95

15-08-2016

I believe the answer is D. 1/16.

Answer Link

Hussain514 Hussain514

17-08-2016

1 half-life: 1/2 left

2: half of that, or 1/4

3: half of that, or 1/8

4: half of that, or 1/16

. (1/2)^4 = 1/16
soafter four half lives it would be 1/16
so correct option is D

Answer Link

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