Uranium 235 undergoes an alpha decay to produce thorium 231
Asked by wiki @ in Physics viewed by 961 People
Uranium-235 decays naturally, by alpha decay. Write the balance decay equation below
Answered by wiki @
Answer
92U^235→90Th^231+2He^4
Explanation
Uranium-235 produces thorium-231 by alpha decay.
An α-particle is a helium nucleus. It contains 2 protons and 2 neutrons, for a mass number of 4.
During α-decay, an atomic nucleus emits an alpha particle. It transforms (or decays) into an atom with an atomic number 2 less and a mass number 4 less.
Thus, uranium-238 decays through α-particle emission to form thorium-231
92U^235 → 90Th^231 + 2He^4
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