Compute the hydrogen spectral-line wavelength from initial and final levels and the Rydberg constant, for Balmer-series emission/absorption wavelength estimates.
氢原子谱线波长。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Rydberg formula | 1/λ = R_H(1/n₁² − 1/n₂²) | Rydberg 1888 |
| Rydberg constant | R_∞ = 1.0973731568×10⁷ m⁻¹ | CODATA 2018 |
| Hydrogen value | R_H = R_∞/(1 + m_e/M_p) | Reduced mass correction |
| Balmer series | n₁ = 2 visible lines | Balmer 1885 |
| Lyman/Paschen | n₁=1 UV, n₁=3 IR | Hydrogen series |
| Series limit | Shortest at n₂ → ∞ | Atomic spectroscopy |