Can QT estimate the ionization energy of neutral Helium, He I?

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The discussion centers on the conceptual understanding of ionization energy, particularly for neutral helium (He I), and how it relates to quantum theory (QT). Ionization energy is defined as the energy required to remove the outermost electron, which can be counterintuitive since this electron is often the one with the highest energy. Quantum mechanics, through methods like perturbation theory and the Hartree-Fock approximation, can estimate ionization energies with high accuracy, but these calculations can be complex and require computational resources. Experimental determination of ionization energy typically involves photoionization techniques using synchrotron sources. The conversation also touches on the limitations of quantum mechanics in accurately describing multi-electron systems and the need for corrections in calculations for heavier elements.
  • #31
Sean Torrebadel said:
I'll accept that probability theories have their place, but I refuse to accept that the foundation of my structural being is structured with such uncertainty.

Still you are born because of a totally random egg-activation,
and you had about 50% probability of being structurally a male or a female.

From the rest of you comments on QM, I can also conclude that your training in this field was a bit chaotic ...
... and this influenced considerably (structurally) your way of thinking.

If you just considered all experimental data, your conclusion would be certainly different.
Experimental data would reduce any uncertainty in your understanding of physics.
 
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