单词 | principal quantum number |
释义 | principal quantum number [`prin·sǝ·pǝl `kwän·tǝm ´nǝm·bǝr] ATOMIC PHYSICS A quantum number for orbital electrons, which, together with the orbital angular momentum and spin quantum numbers, labels the electron wave function; the energy level and the average distance of an electron from the nucleus depend mainly upon this quantum number. |
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