I need to know the number of years! There is only one part to this question. The pictures show the "Figure" and "Bar charts" tabs and the "Graph" tab says this: A curve showing the percentage of radioactive atoms remaining in a mineral sample is graphed on a coordinate plane. The horizontal axis, labeled "Age in half-lives," ranges from 0 to 6. The vertical axis, labeled "Percentage remaining," ranges from 0 to 100. The curve enters the viewing field with a negative slope at (0, 100). The magnitude of the negative slope is progressively reduced such that it is nearly horizontal as it exits the viewing field at (6, 0.02). Thank you!!

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I need to know the number of years! There is only one part to this question. The pictures show the "Figure" and "Bar charts" tabs and the "Graph" tab says this:

A curve showing the percentage of radioactive atoms remaining in a mineral sample is graphed on a coordinate plane.

  • The horizontal axis, labeled "Age in half-lives," ranges from 0 to 6.
  • The vertical axis, labeled "Percentage remaining," ranges from 0 to 100.
  • The curve enters the viewing field with a negative slope at (0, 100). The magnitude of the negative slope is progressively reduced such that it is nearly horizontal as it exits the viewing field at (6, 0.02).

Thank you!!

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
1
2
3
4
5
Age in half-lives
yr
Percentage remaining
---1/2 remain----R
1/4 remain---- --
1/8 remain-
co
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 1 2 3 4 5 Age in half-lives yr Percentage remaining ---1/2 remain----R 1/4 remain---- -- 1/8 remain- co
Figure
Graph
Bar charts
Four bar charts, drawn above the graph, show the percentages of radioactive and daughter atoms in
the mineral sample at the following points along the curve.
• point (0, 100): 100% of the atoms are radioactive.
• point (1, 50): The bar chart, labeled "1/2 remain," notes 50% of the atoms are radioactive
and 50% are daughter atoms.
• point (2, 25): The bar chart, labeled "1/4 remain," notes 25% of the atoms are radioactive
and 75% are daughter atoms.
• point (3, 12.5): The bar chart, labeled "1/8 remain," notes 12.5% of the atoms are radioactive
and 87.5% are daughter atoms.
Transcribed Image Text:Figure Graph Bar charts Four bar charts, drawn above the graph, show the percentages of radioactive and daughter atoms in the mineral sample at the following points along the curve. • point (0, 100): 100% of the atoms are radioactive. • point (1, 50): The bar chart, labeled "1/2 remain," notes 50% of the atoms are radioactive and 50% are daughter atoms. • point (2, 25): The bar chart, labeled "1/4 remain," notes 25% of the atoms are radioactive and 75% are daughter atoms. • point (3, 12.5): The bar chart, labeled "1/8 remain," notes 12.5% of the atoms are radioactive and 87.5% are daughter atoms.
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