Atom charge after ionizing (nuclei/particle) radiation

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SUMMARY

The discussion centers on the electrical charge changes in atoms during alpha and beta decay processes. In alpha decay, an unstable atom like Uranium-238 emits an alpha particle, resulting in a daughter nucleus of Thorium-234, which has 90 protons, thus maintaining charge conservation without ionization. In beta decay, a neutron in an atom such as Potassium-40 converts into a proton, producing Calcium-40 and an emitted beta particle (electron), again adhering to charge conservation principles. The energies involved in these nuclear reactions are on the order of MeV, significantly higher than the eV or keV energies relevant to atomic electron interactions.

PREREQUISITES
  • Understanding of nuclear decay processes, specifically alpha and beta decay.
  • Familiarity with atomic structure, including protons, neutrons, and electrons.
  • Knowledge of charge conservation principles in nuclear reactions.
  • Basic grasp of energy scales in nuclear versus atomic phenomena.
NEXT STEPS
  • Study the mechanisms of alpha decay in detail, focusing on Uranium-238 and Thorium-234.
  • Explore beta decay processes, particularly the conversion of neutrons to protons in isotopes like Potassium-40.
  • Investigate the differences in energy scales between nuclear reactions (MeV) and atomic interactions (eV, keV).
  • Learn about ionization processes and how they differ from nuclear decay events.
USEFUL FOR

Students of nuclear physics, educators teaching atomic structure and decay processes, and anyone interested in the fundamental principles of nuclear reactions and charge conservation.

n124122
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Homework Statement


When an instable atom emits alpha or beta particles. Doesn't the overal electrical charge of the remaining atom change? For example when an atom emits alpha decay, a helium core is emitted, this results in the lose of two protons (forthe radiating atom). But doens't this mean the atom became an ion, because it has 2 elektrons 'to much' (more than protons). And when it emits beta radiation. It forms an extra proton, so doesn't this make the atom a positive ion? And when this happens, does the atom remain an ion or??

Homework Equations


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The Attempt at a Solution


I have no idea:wink:
 
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n124122 said:
When an instable atom emits alpha or beta particles. Doesn't the overal electrical charge of the remaining atom change? For example when an atom emits alpha decay, a helium core is emitted, this results in the lose of two protons (forthe radiating atom). But doens't this mean the atom became an ion, because it has 2 elektrons 'to much' (more than protons). And when it emits beta radiation. It forms an extra proton, so doesn't this make the atom a positive ion? And when this happens, does the atom remain an ion or??

in alpha deacay the parent say 238U goes to thorium the daughter nucleus and an alpha particle -in this the charge and particle number conservation is obeyed. Thorium has 90 protons whereas U has 92 and the He has those two protons , the process is nuclear so no ionised Uranium is there.
Similarly in beta decay -as electron is not present in the nucleus in this process one neutron gets converted to proton and charge conservation is obeyed; as an example
40 K is a beta emitter(z-19) than the product is 40 Ca with Z value 20 and a beta particle i.e. electron.
the events are at energies where the atomic electrons/cheges do not have any role.( energies are of the order of MeV in nuclear reaction) whereas in atomic phenomena its of the order of eV or kev.
 
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drvrm said:
in alpha deacay the parent say 238U goes to thorium the daughter nucleus and an alpha particle -in this the charge and particle number conservation is obeyed. Thorium has 90 protons whereas U has 92 and the He has those two protons , the process is nuclear so no ionised Uranium is there.
Similarly in beta decay -as electron is not present in the nucleus in this process one neutron gets converted to proton and charge conservation is obeyed; as an example
40 K is a beta emitter(z-19) than the product is 40 Ca with Z value 20 and a beta particle i.e. electron.
the events are at energies where the atomic electrons/cheges do not have any role.( energies are of the order of MeV in nuclear reaction) whereas in atomic phenomena its of the order of eV or kev.

So the elektrons are just emittes in a chemical reaction with low energies?
 

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