devangill devangill

23-03-2017
Biology

contestada

raden-222 is a naturlly occuing isotope with a half life of 3.8 days if 4.0g of raden 222 gas wewre pumped in a container then how much radon -222would be in the container 7.6 das later

Respuesta :

FordPrefect FordPrefect

23-03-2017

1.0g

7.6/3.8=2

1. 4/2=2

2. 2/2=1

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