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Elements of the quantum theory. IX. The helium atom. Part I. The perturbation method
American Chemical Society | 1936|Keywords: Helium -
The spectral decomposition of the helium atom two-electron configuration in terms of hydrogenic orbitals
National licenceIOP Institute of Physics | 2013|Keywords: helium atom electron configuration matrix mechanics projections -
The effects of the Pauli exclusion principle in determining the ionization energies of the helium atom and helium-like ions
National licenceIOP Institute of Physics | 2012|Keywords: helium -
Characterizing Students' Mechanistic Reasoning about London Dispersion Forces
Online Contents | 2016|Keywords: Helium -
Two-parameter wave function for the helium sequence
American Chemical Society | 1987|Keywords: Helium -
A lesser known one-parameter wave function for the helium sequence and the virial theorem
American Chemical Society | 1988|Keywords: Helium
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