Paschen series
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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.
Paschen series, in the infrared, measured lines with wavelengths (nm):
- 4-3 --- 1874.5
- 5-3 --- 1281.4
- 6-3 --- 1093.5
- 7-3 --- 1004.6
- 8-3 ---- 954.3
- 9-3 ---- 922.6
- 10-3 --- 901.2
- 11-3 --- 886.0
- 12-3 --- 874.8
- 13-3 --- 866.2
See also
- Bohr model
- H-alpha
- Hydrogen spectral series
- Rydberg formula
- Balmer series
- Lyman series
- Brackett series
- Pfund series
- Humphreys series
External references
- [Paschen series (animation)]
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