A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of every 1,000 nuclei of potassium-40 originally in the meteorite, only 125 are still present, meani they have not yet decayed. How old is the meteorite (in yr)? (Hint: See the figure below.) (ote: The half-life of potassium-40 is 1.3 billion years.) Figure Graph Bar charts

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A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of every 1,000 nuclei of potassium-40 originally in the meteorite, only 125 are still present, meaning
they have not yet decayed. How old is the meteorite (in yr)? (Hint: See the figure below.) (Note: The half-life of potassium-40 is 1.3 billion years.)
Figure
Graph
Bar charts
A mineral sample
containing radioactive
atoms :, which decay
into daughter atoms ::
100
Percentage of
radioactive and
50
daughter atoms
in the mineral
100
Percentage of
50
-radioactive atoms
remaining
2
3
Age in half-lives
yr
Percentage remaining
:---1/2 remain----ER
1/4 remain---- ---:
1/8 remain-------
Transcribed Image Text:A sample from a meteorite that landed on Earth has been analyzed, and the result shows that out of every 1,000 nuclei of potassium-40 originally in the meteorite, only 125 are still present, meaning they have not yet decayed. How old is the meteorite (in yr)? (Hint: See the figure below.) (Note: The half-life of potassium-40 is 1.3 billion years.) Figure Graph Bar charts A mineral sample containing radioactive atoms :, which decay into daughter atoms :: 100 Percentage of radioactive and 50 daughter atoms in the mineral 100 Percentage of 50 -radioactive atoms remaining 2 3 Age in half-lives yr Percentage remaining :---1/2 remain----ER 1/4 remain---- ---: 1/8 remain-------
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