Question
Uranium -238 disintegrates by emitting an alpha particle to form substance Y. Nuclide Y emits a beta particle to form substance Z
Uranium -238 disintegrates by emitting an alpha particle to form substance Y. Nuclide Y emits a beta particle to form substance Z. Write down nuclear equations to show how substance Y and Z are formed (U=At No. 92)
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The disintegration of Uranium-238 (U-238) by emitting an alpha particle (2 protons and 2 neutrons) can be represented by the nuclear equation:
^238U -> ^234Th + ^4He
Substance Y, which is formed by the disintegration of U-238, is represented by Thorium-234 (Th-234).
The disintegration of Thorium-234 (Th-234) by emitting a beta particle (an electron) can be represented by the nuclear equation:
^234Th -> ^234Pa + ^0e
Substance Z, which is formed by the disintegration of Y, is represented by Protactinium-234 (Pa-234).
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