Problem: Identify the unknown isotope X in the following decays.Part A. 234U→X+α.(1) 235U(2)230Th(3)228Th(4)239PuPart B. 32P→X+e−(1)32S(2)30P(3)35Cl(4)31PPart C. X→30Si+e+(1)32S(2)30P(3)35Cl(4)31PPart D. 24Mg→X+γ(1)24Na(2)23Na(3)24Mg(4)26Al

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Part A. 234U→X+α.

An alpha particle is comprised of 2 protons and 2 neutrons.

An alpha decay or alpha emission occurs when an unstable nucleus ejects an alpha particle to create a new element. 

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Problem Details

Identify the unknown isotope X in the following decays.

Part A. 234U→X+α.

(1) 235U




Part B. 32P→X+e−





Part C. X→30Si+e+





Part D. 24Mg→X+γ





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