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Relative dating, half life, carbon-14 question

Forums: Science, Geology
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barryrobinholt
 
Reply Sun 6 Apr, 2014 02:07 pm
Carbon-14 has a half-life of 5,730 years. A specimen analyzed in a lab contains only 1//4 of the original Carbon-14. How old is this specimen?
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Type: Question • Score: 2 • Views: 1,934 • Replies: 2
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engineer
 
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Reply Sun 6 Apr, 2014 02:12 pm
@barryrobinholt,
After one half life it would have half, after two, only a quarter, so 2 x 5730 = 11,460 years.
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raprap
 
  1  
Reply Sun 6 Apr, 2014 04:38 pm
@barryrobinholt,
Two half lives (1/4=1/2*1/2). 2*5730 years = 11460 years.

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