| 单词 | principal quantum number |
| 释义 | > as lemmasprincipal quantum number principal quantum number n. Physics the quantum number symbolized by n (see N n. 6c), which determines the orbital energy of an electron (to the first order) and takes positive integral values. ΘΚΠ the world > matter > physics > quantum theory > [noun] > quantum number quantum number1902 quantum defect1915 principal quantum number1922 magnetic quantum number1923 1922 A. D. Udden tr. N. Bohr Theory of Spectra iii. i. 67 This quantum number which will always be denoted by n will therefore be called the ‘principal quantum number’ [Da. Hovedkvantetallet]. 1973 J. G. Tweeddale Materials Technol. I. ii. 23 A specific maximum possible number of orientations of orbital pattern..is possible for each mode, the number being determined by the relevant Principal Quantum Number. 1994 Nature 25 Aug. 593/1 They expect that they will be able to do this only if the electrons are relatively far from the nucleus, meaning that they will have a principal quantum number, n, that is relatively large, or that the atom is in a Rydberg state. < as lemmas |
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