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Half Life and Average Life

Carbon dating...

Question

Carbon dating is based upon the radioactive decay of naturally occuring .

A

C-12

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B

C-13

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C

C-14

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Solution

The correct option is C C-14
Carbon dating method was developed by Willard Libby and is used to determine the age of fossils by measuring the radioactive decay of C-14 and the ratio of C-14 to C-12 in the fossil sample.

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Q. The naturally occuring radioactive isotope of carbon is:

Q. The radioactive isotope of carbon used for carbon dating is

Q. a) Three types of radioactive decay occur in nature. Briefly describe them.
b) State the law of radio active decay.

Q. State radioactive decay law. Prove that radioactive decay is exponential in nature.

Q. Consider following statements
I. 'Carbon-dating' is based on the measurement of the activity of

^{14} C

^{40} K

is used to determine the age of the objects up to 1 million years old.
III. The uranium-lead method is based on the natural uranium-238 decay series which ends up with the production of stable lead-206.

Select the correct statements:

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