Posted by Angie on Saturday, April 4, 2009 at 10:10pm.
how old is a mammoth's tusk if there is only 25 percent C-14 remaining in the sample?
science - bobpursley, Saturday, April 4, 2009 at 10:26pm
Half disappeared in one half-life.
Half that remaining disappeared in the next half-life.
science - Angie, Saturday, April 4, 2009 at 10:44pm
..what does that mean?
science - PsyDAG, Sunday, April 5, 2009 at 12:40pm
Knowing the half-life of C-14 would allow you to take twice the half-life.
From searching the Internet under "C-14 half life", I found that the half-life of Carbon 14 is 5730 years.
This should help a little more. Thanks for asking.
science - steve vincent, Monday, February 6, 2012 at 5:09pm
Chemistry - Oscar, Monday, February 4, 2013 at 8:34pm
B. 11400 years
science - Sally, Tuesday, January 14, 2014 at 10:26pm
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