The half life of carbon 14 is 5700 years. If the carbon 14 level measured in a fossilized bone has only 1/4 of the original amount, how old in the bone?
4 answers
8550
50% 1/2 = 5700 (one half life)
25% 1/4 = 5700 x 2 (two "half life"s)
Therefore, after two complete half life cycles, there will be only 1/4 of the original amount.
25% 1/4 = 5700 x 2 (two "half life"s)
Therefore, after two complete half life cycles, there will be only 1/4 of the original amount.
1425
The answer is 10 grams.
3 answers