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PENTALIZARD8179
04.07.2020 •
Mathematics
The fictitious element homer decays into fictitious daughter element Lisa with a half-life of 1000 years. a rock is found that contains 2 moles of homer and 6 moles of Lisa. what is the approximate age of the rock?
A. 1000 years
B. 500 years
C. 2000 years
D. 4000 years
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Ответ:
C. 2000 years
Step-by-step explanation:
Data provided in the question
Half life = 1,000 years
Number of homer moles contained = 2
And, for lisa = 6
Based on the above information, the computation is shown below:
But before that we need to do the following calculations
Total moles by combing the homer and lisa is
= 2 moles + 6 moles
= 8 moles
Now the present fraction of homer is
Therefore the approximate age of rocks is
= 2,000 years
Hence, the correct option is c.
Ответ: