Calculating Ionization Energy of Elements Beyond H

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SUMMARY

The ionization energy of elements beyond hydrogen cannot be calculated using a single formula applicable to all elements. The formula E = Z² * 13.6 eV / n² is valid only for hydrogen-like atoms with one electron. For multi-electron atoms, the interactions between electrons complicate the calculation of ionization energy. Historical calculations, such as those by Hartree and Fock, provide foundational models for understanding these complexities.

PREREQUISITES
  • Understanding of atomic structure and electron configurations
  • Familiarity with the concept of ionization energy
  • Knowledge of quantum mechanics principles
  • Basic proficiency in using scientific databases and resources
NEXT STEPS
  • Research the Hartree-Fock method for calculating ionization energies
  • Explore multi-electron atom models and their implications on ionization
  • Study ionization energy tables from resources like Webelements
  • Investigate the role of electron-electron interactions in atomic physics
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Chemists, physicists, and students studying atomic theory and quantum mechanics, particularly those interested in the ionization energies of multi-electron elements.

konain
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Can anyone tell me which formula is used to calculate the ionization energy of elements different then H.

E= Z^2 13,6eV/ n^2 where n- number of the shell, and Z- number of protons

only gives the ionization energy in case of one electron around the nucleus.

Thank you in advance.
 
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Konain the formula you quote would be for a single electron bound to a nucleus of atomic number Z. But in an atom it will have Z electrons and they interact so the ionisation energy is much more complex to calculate. The first good results from a calculation was by Hartree and Fock - look up Hartree model in a search engine
 
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