# Chemistry

If 100.0 g of carbon-14 decays until only 25.0 g of carbon is left after 11,460 y, what is the half-life of carbon-14?

1. 0
1. Same song.

posted by DrBob222
2. n artifact was found and tested for its carbon-14 content. If 83% of the original carbon-14 was still present, what is its probable age (to the nearest 100 years)? (Carbon-14 has a half-life of 5,730 years.)
yr

posted by MARIA
3. 100 years

posted by Sophia

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