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Balmer formula

Balmer formula [SPECT] An equation for the wavelengths of the spectral lines of hydrogen,
1/ R[(1/m2) (1/n2)], where is the wavelength, R is the Rydberg constant,
and m and n are positive integers (with n larger than m) that give the principal
quantum numbers of the states between which occur the transition giving rise to
the line. { bo˙ l mər fo˙ r myə lə }