[問題] Age determinations with radioisotopes
我想請問一題有關放射性定年法的
A lunar rock was analyzed for argon by mass spectrometry
and for potassium by atomic absorption .
the results of these analyses showed that the sample
contained 3.02*10^-5 mL/g of argon
and 0.0083% of potassium. The half-life of potassium-40 of 2.9? The
half-life of potassium-40 is 1.248^109 year
caluclate the age of the lunar rock.
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懇請大家教我
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04/18 01:24, , 1F
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