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December 21, 2014

December 21, 2014

Posted by **amor** on Wednesday, September 25, 2013 at 10:34pm.

A.6 minutes

B.24 minutes

C.48 minutes

D.96 minutes

I NEED HELP!!!!

- science -
**amor**, Wednesday, September 25, 2013 at 10:36pmIS IT.....C?

- science -
**Steve**, Thursday, September 26, 2013 at 5:34am5g is 1/4 of 20g, so that's 2 half-lives

2x24 = 48 minutes, so you are correct.

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