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Half-lives elapsed:
0
1
2
3
4
5
6

Fraction remaining:
1/1
1/2
1/4
1/8
1/16
1/32
1/64

Percentage remaining:
100
50
25
12.5
6.25
3.125
1.563

Which value is being measured in the columns labeled "Fraction remaining" and "Percentage remaining"?

A. Years of decay
B. Quantity of energy
C. Amount of material that has not decayed

Answer :

Final answer:

The 'Fraction remaining' and 'Percentage remaining' columns indicate the amount of material that has not decayed. Radioactive decay reduces the isotope amount by half with each half-life, which is an exponential decay process used in various scientific and medical applications.

Explanation:

Fraction remaining and Percentage remaining are measuring the amount of material that has not decayed from a radioactive isotope over a certain number of half-lives.

The columns labeled "Fraction remaining" and "Percentage remaining" are measuring the amount of material that has not decayed over a certain number of half-lives. The concept of half-life is fundamentally important in nuclear chemistry and radioactive decay, where it is used to describe the time required for half of the radioactive isotope in a sample to decay into a more stable form.

Radioactive decay follows an exponential pattern, where after each half-life, only half of the initial quantity remains. After one half-life, 50% remains, after two half-lives, 25% remains, and this pattern continues. This is a key concept in understanding how radioactive materials decrease over time and can be used to date archaeological finds, understand medical isotopes, or assess environmental radioactive contamination.

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