Paschen series
From Wikipedia, the free encyclopedia
In physics, the Paschen series (also called Ritz-Paschen series) is the series of transitions and resulting emission lines of the hydrogen atom as an electron goes from n ≥ 4 to n = 3, where n refers to the principal quantum number of the electron. The transitions are named sequentially by Greek letter: n = 4 to n = 3 is called Paschen-alpha, 5 to 3 is Paschen-beta, 6 to 3 is Paschen-gamma, etc.
They are named after the Austro-German physicist Friedrich Paschen who first observed them in 1908.
Paschen series, in the infrared, measured lines with wavelengths (nm):
| n | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |  |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Wavelength (nm) | 1874.5 | 1281.4 | 1093.5 | 1004.6 | 954.3 | 922.6 | 901.2 | 886.0 | 874.8 | 866.2 | 820.1 |
[edit] See also
- Bohr model
- H-alpha
- Hydrogen spectral series
- Rydberg formula
- Balmer series
- Lyman series
- Brackett series
- Pfund series
- Humphreys series
 |
This quantum mechanics-related article is a stub. You can help Wikipedia by expanding it. |
