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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

1 passage

contentuptodate· Content· item f35_35_36413

©2013 UpToDate ® Print Email Atom with electrons orbiting the nucleus With excitation, an electron moves from an inner shell (1) to an outer shell (2), thereby defining the atom at ground state and excited state.