Uranium-234 decays by alpha emission to form a new nuclide. Identify the new nuclide.

Name: Uranium-234 decays by alpha emission to form a new nuclide. Identify the new nuclide.
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Question

Quizplus · Accepted Answer

When uranium-234 undergoes alpha decay, it emits an alpha particle (which is equivalent to a helium-4 nucleus), resulting in a decrease of 4 in mass number and 2 in atomic number. Therefore, uranium-234 (atomic number 92) decays to thorium-230 (atomic number 90).

Uranium-234 Decays by Alpha Emission to Form a New Nuclide