Suppose That a Particular Sample of Wood Contains 10²⁰ Atoms

question 213

Multiple Choice

Suppose that a particular sample of wood contains 10²⁰ atoms of the radioactive isotope ¹⁴C. The half-life of ¹⁴C is about 6000 years. Approximately how long will it take for all the ¹⁴C atoms to decay to ¹⁴N?

• A) infinite amount of time
• B) 12,000 years
• C) 3000 years
• D) 6000 years

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