An article about half-lives describes a parent isotope. What is a parent isotope?
the isotope...
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An article about half-lives describes a parent isotope. What is a parent isotope?
the isotope that forms from the radioactive decay of a less stable isotope
the isotope that forms from the radioactive decay of a more stable isotope
an isotope that undergoes radioactive decay to form a less stable isotope
an isotope that undergoes radioactive decay to form a more stable isotope
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