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Chapter 20, Section 20.1, Critical Thinking, Exercise 01
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What if a nuclide were to undergo two successive decays such that it became the original nuclide? Which decays could account for this? Provide an example.



Supriadi, B., Tresnowati, D. S., & Ridlo, Z. R. (2020, May). Numerical simulation of mass in core decay of radioactive substance Thorium-232 series. In Journal of Physics: Conference Series (Vol. 1538, No. 1, p. 012040). IOP Publishing.


Beta decays and consequent alpha decay accounts for a nuclide undergoing two successive decay to produce the original nuclide. An example of such a nuclide is an isotope of thorium which undergoes two successive beta decays followed by one alpha decay to produce the original thorium.

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