Chemistry, 26.09.2019 07:30 alailatrenee18541

4. which of the following naturally occurring radioisotopes would be most useful in dating objects thought to be millions of years old? (1 point) a. carbon14; t1/2= 5.73 x 103 years b. potassium40; t1/2= 1.28 x 109 years c. thorium234; t1/2= 25 days d. radon222; t1/2= 3.8 days

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