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# What is the initial state ${\mathrm{n}}_{1}$ for the Balmer series?

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## The initial state ${\mathrm{n}}_{1}$for the Balmer series.The Balmer series refers to a set of spectral emission lines of the hydrogen atom caused via electron transitions between higher energy levels to the energy level having the main quantum number $2$.Balmer determined that its lightest atom, hydrogen, was most likely to exhibit simple spectrum patterns.The wavelengths of the four visible spectral lines were measured by Angstrom to be$656.21,486.07,434.01,$ and $410.12$ nm.${\mathrm{R}}_{\mathrm{H}}\left(\frac{1}{4}–{\left(\frac{1}{{\mathrm{n}}_{2}}\right)}^{2}\right)$Hence, in the Balmer series, the initial state ${n}_{1}$is $2$, and ${n}_{2}$ $=3,4,\dots$

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