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What is the final product of a sequence of spontaneous nuclear decay reactions?

Aa stable isotope
Ba radioisotope
Ca hydrogen atom
Da more massive atom

Verified Answer :

The correct answer is A. The final product of a sequence of spontaneous nuclear decay reactions is a stable isotope. A stable isotope is characterized as an atom where its nuclei has the same number of protons but different number of neutrons. There are about 300 known stable isotopes occurring naturally.

Answer:b. a radioisotope

Explanation: