Rydberg Equation Calculator

Your details

Z = 1 for hydrogen, 2 for He+, 3 for Li2+, etc. The Rydberg equation applies to atoms and ions with exactly one electron.
The principal quantum number of the lower (final) energy state. Must be a positive integer smaller than n₂.
The principal quantum number of the higher (initial) energy state. Must be a positive integer greater than n₁.
Wavelength
102.5175

Wavelength of the emitted or absorbed photon in the chosen unit

Wavenumber97,544.28cm⁻¹
Frequency2,924.304THz
Photon energy12.0939eV
Spectral seriesLyman series
Spectral regionultraviolet (UV)

Wavelength: 102.5175 nm (ultraviolet (UV))

  • The photon falls in the ultraviolet (UV) part of the electromagnetic spectrum.
  • The photon carries 12.0939 eV of energy, equivalent to 2924.3040 THz oscillation frequency.
  • For hydrogen, the Lyman series covers transitions that end at n = 1. The series limit (n2 -> infinity) converges to a wavelength of 91.13 nm.

Next stepCompare this wavelength with tabulated hydrogen emission lines to identify which part of the emission spectrum you are working with.

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