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C-14, a form of carbon used to find the age of fossils, has a half-life of 5730 years. How much of a 50-gram sample is left after 7000 years?

After 7000 years, ( ) grams of the sample remain.

Answer :

Final answer:

To find the amount of C14 remaining after 7000 years, you can use the formula: amount remaining = starting amount * (1/2)^(time elapsed / half-life).

In this case, the amount remaining is 21.6 grams.

Explanation:

To find the amount of C14 remaining after 7000 years, we can use the formula:

  • Amount remaining = Starting amount * (1/2)^(time elapsed / half-life)
  • So, the amount of C14 remaining after 7000 years can be calculated as:
  • Amount remaining = 50 grams * (1/2)^(7000 / 5730)
  • Calculating this value gives us the answer:
  • Amount remaining = 50 grams * 0.432

Amount remaining = 21.6 grams

Learn more about C14 carbon dating here:

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