Question:
2 The wavelength of the first line of the He ion spectral
Last updated: 6/30/2023
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2 The wavelength of the first line of the He ion spectral series whose interval between the extreme lines is 2 725 x 106 m is R 1 09 107 m a 471 82 nm c 1019 37 nm b 4718 2 nm d 165 14 nm