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Hydrogen spectral series — transitions to n = 1 (UV region)
Rydberg Formula
1/λ = RH × (1/1² − 1/n²)
RH = 1.09737 × 10⁷ m⁻¹
E = hc/λ | ν = c/λ
| Transition | n = 2 → n = 1 |
| Wavelength (λ) | 121.502 nm |
| Frequency (ν) | 2.4674 PHz (2.4674e+15 Hz) |
| Photon energy (eV) | 10.2043 eV |
| Photon energy (J) | 1.6349e-18 J |
| Region | Ultraviolet (UV) |
| n | Name | λ (nm) | Energy (eV) | Frequency (PHz) | Region |
|---|---|---|---|---|---|
| 2 | Lyman α | 121.502 | 10.2043 | 2.4674 | Ultraviolet (UV) |
| 3 | Lyman β | 102.518 | 12.0939 | 2.9243 | Ultraviolet (UV) |
| 4 | Lyman γ | 97.202 | 12.7553 | 3.0842 | Ultraviolet (UV) |
| 5 | Lyman δ | 94.924 | 13.0615 | 3.1582 | Ultraviolet (UV) |
| 6 | Lyman ε | 93.730 | 13.2278 | 3.1985 | Ultraviolet (UV) |
| 7 | Lyman ζ | 93.025 | 13.3280 | 3.2227 | Ultraviolet (UV) |
| ∞ | Series limit (ionization) | 91.127 | 13.6057 | 3.2898 | Ultraviolet (UV) |
Click any row to select that line.
Note
All Lyman series lines fall in the ultraviolet region (λ < 400 nm). They were discovered by Theodore Lyman in 1906–1914.
Use our lyman series calculator for quick and accurate calculations. Free online tool.
Bohr model, Rydberg formula, photon energy, wavelength, and spectral series
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