Perturbed Series in Line Spectra

摘要: There occur many line series in atomic spectra which do not even approximately fit a Ritz formula. They display either sudden rise the value of ${n}^{*}\ensuremath{-}n$ towards high term values or gradual fall almost unit. The latter type contains an extra due to some other structure and becomes similar first after removal that term. It is shown all such obey formula ${\ensuremath{\nu}}_{n}=\frac{R}{{n}^{*2}}$, ${n}^{*}=\ensuremath{\mu}+\ensuremath{\alpha}{\ensuremath{\nu}}_{n}+(\frac{\ensuremath{\beta}}{{\ensuremath{\nu}}_{n}}\ensuremath{-}{\ensuremath{\nu}}_{0})$ ${\ensuremath{\nu}}_{0}$ wave number level same from different electron structure. Ca I, Ba Hg Cu Al II are discussed detail. rules governing occurrence perturbation more restricted than simple ones can be deduced results problems. constant $\ensuremath{\beta}$ always negative trems therefore appear repel each other. I levels $5d6p^{31}P^{0}{D}^{0}{F}^{0}$ $6snf^{1}F^{0}$ given for time.