Can anyone tell me on what basis do we assign ok not assign conclude

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The discussion centers on the energy levels of atomic orbitals, specifically comparing the 1s and 2s orbitals. It highlights that the 1s orbital is assigned "less energy" than the 2s orbital based on both theoretical calculations and experimental measurements, with consistent results supporting this conclusion. The term "less energy" refers to the stability and energy state of electrons in these orbitals, where lower energy indicates a more stable configuration. The conversation emphasizes the reliability of both calculation and experimental data in establishing these energy levels.
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can anyone tell me on what basis do we assign ok not assign conclude that 1s orbital has a "less energy" than 2s..? what do we really mean by saying less energy
 
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It can be calculated, it can be measured experimentally - make your pick. Results are always the same.
 
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