Gadolinium-149 decays through alpha decay and forms samarium-145. Estimate the kinetic energy of the alpha particle.
Gadolinium-149 decays through alpha decay and forms samarium-145. Estimate the kinetic energy of the alpha particle.
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Transcribed Image Text:Gadolinium-149 decays through alpha decay and forms samarium-145. Estimate the
kinetic energy of the alpha particle.
Expert Solution

Concept and Principle:
- During alpha decay, the unstable nucleus will release an alpha particle, which is a helium nucleus with two protons and two neutrons.
- The following reaction takes place in alpha decay.
Here X is the unstable nucleus.
- The kinetic energy of the alpha particle released is given by,
Here A is the atomic number of the parent nucleus and Q is the energy released in the reaction.
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