Author Question: The practical limit for 14C dating occurs when its activity falls to 0.20% of its original value due ... (Read 38 times)

Alygatorr01285 · **on:** Feb 15, 2020

Question 1

If a log contains 60.0% of the 14C present in a living tree, how long has the log been dead? The half-life of 14C is 5730 years.
◦ 3430 years
◦ 7560 years
◦ 2290 years
◦ 4220 years

Question 2

The practical limit for 14C dating occurs when its activity falls to 0.20% of its original value due to interference in detectors by natural background radiation. If the half-life is 5715 years, what is the maximum age of a sample that can be dated by 14C without interference?
◦ 2.9 × 106 years
◦ 1.3 × 104 years
◦ 5.1 × 104 years
◦ 2.9 × 104 years

bblaney · **Reply #1 on:** Feb 15, 2020

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