Question 7

A recent discovery of bones found in a crypt in Guatemala was subjected to dating. The bones had a activity of 0.213 Bq/g compared to a activity of 0.253 Bq/g for a living organism. Given that the half-life of is about 5730 years, estimate how long the bones have been buried.

• A. 985 years
• B. 1420 years
• C. 1.5 million years
• D. 13750 years
• E. 11500 years
• F. 8270 years

Formula Sheet

Question 6

Question 8

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