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Unformatted text preview: Cl has energetic valence electrons for which this transition is favorable. Why are all the energy values negative? The zero of energy is set as the electron and the nucleus dissociated completely. In an atom of any element, the 2s orbital is: only at lower energy than the 2p orbital for atoms with more than one electron. Why are the energy levels not equally spaced? The energies scale as 1/n 2 so they get closer together as n gets larger....
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- Spring '08