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 13STP
Explanation of Solution
Step 1:
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 have to find out the percentage of remaining radioisotope after
If we use
Step 2:
After
Additional nuclei that will decay are represented by this value, so we now have
In conclusion, after
This value can be confirmed if we simply
Chapter 25 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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