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 h
ow much radon -222would be in the container 7.6 das later
1 answer:
1.0g
7.6/3.8=2
1. 4/2=2
2. 2/2=1
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