Interpretation:
Estimating the percentage of remaining radioisotope.
Concept introduction:
Radioisotopes can be defined as atoms that contain an unstable combination of neutrons and protons, or excess energy in their nucleus.
Answer to Problem 12STP
Explanation of Solution
The given graph represents the decay curve for radioactive isotope where on the x-axis number of half-lives is given, and on the y-axis radioisotope remaining in % is given.
We need to determine the percentage of remaining radioisotope after
If we use
After
This value represents the additional nuclei that will decay and now we have
In conclusion, after
This value can be confirmed if we simply find
Chapter 25 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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