Posted by
**Charleze** on
.

Ba-140 has a half life of 13.0 days. What fraction of a sample of Ba-140 will remain after 39 days?

A. 1/8th

B. 1/16th

C. 1/2th

D. 1/4th

Thursday

March 30, 2017
Posted by
**Charleze** on
.

Ba-140 has a half life of 13.0 days. What fraction of a sample of Ba-140 will remain after 39 days?

A. 1/8th

B. 1/16th

C. 1/2th

D. 1/4th

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