XXth century_physics
XXth century_physics XXth century_physics
Spectral lines were seen as manifestation of the harmonic vibrations within atoms. Johnstone Stoney suggested that it is more convenient to use 1/λ ~ ν harmonic frequencies ν = k ν 0
Combination principle: One can determine from experimental values measured on a particular atom, a series of numbers T n called spectral terms, such that every wavenumber corresponding to a spectral line of this atom is equal to the difference of two spectral terms 1/λ nm = T n - T m Walter Ritz Law of Series Spectra, Astrophysical Journal 28, 237 (Oct. 1908) (used by Niels Bohr in his 1913 paper on the constitution of atoms)
- Page 1 and 2: Physics of the XX th century Part 1
- Page 3 and 4: Physics of the atom and the path to
- Page 5 and 6: Hantaro Nagaoka Nagaoka's atomic mo
- Page 7 and 8: Robert Millikan (1868-1953 (1868 19
- Page 9 and 10: Charles Glover Barkla (1877-1944) d
- Page 11 and 12: John William Nicholson (1911): atom
- Page 13 and 14: Accelerated electric charge radiate
- Page 15 and 16: Attenuation of radiation for rings
- Page 17 and 18: Solvay Conference 1913
- Page 19 and 20: H. Geiger - On the Scattering of th
- Page 21: Proc. Roy. Soc. 82, 495 (1909)
- Page 24 and 25: In the ”plum-pudding” model of
- Page 26 and 27: "Consider an atom which contains a
- Page 28 and 29: ”...considering the enormous vari
- Page 30 and 31: ”The wavelengths of the first fou
- Page 34 and 35: In the Bohr’s model spectral line
- Page 36 and 37: Bohr found excellent description of
- Page 38 and 39: Periodic system of elements accordi
- Page 40 and 41: Periodic system of elements accordi
- Page 42 and 43: Intra-atomic Charge ”Now, accordi
- Page 44 and 45: H. G. J. Moseley, Phil. Mag. 26, 10
- Page 46 and 47: ”We have here a proof that there
- Page 48 and 49: James Franck Gustav Hertz Franck-He
- Page 50 and 51: James Franck Gustav Hertz ”...it
- Page 52 and 53: Wojciech (Adalbert) Rubinowicz (188
- Page 54 and 55: Solvay Conference 1921
- Page 56 and 57: Arthur Holly Compton (1892-1962) Co
- Page 58 and 59: Compton’s data [(Phys. Rev.19, 26
- Page 60 and 61: Compton effect
- Page 62 and 63: The crisis of the quantum theory
- Page 64 and 65: Louis de Broglie
- Page 66 and 67: Clinton Davisson and Lester Germer
- Page 68 and 69: George P. Thomson Electron diffract
- Page 70 and 71: Important dates in the development
- Page 72 and 73: Heisenberg to Pauli (July 9, 1925)
- Page 74 and 75: ”It is well known that the formal
- Page 76 and 77: ”In this communication I wish fir
- Page 78 and 79: The uncertainty principle
- Page 80 and 81: ”I used to take long walks on Sun
Combination principle:<br />
One can determine from experimental<br />
values measured on a particular<br />
atom, a series of numbers T n called<br />
spectral terms, such that every<br />
wavenumber corresponding to<br />
a spectral line of this atom is equal to<br />
the difference of two spectral terms<br />
1/λ nm = T n - T m<br />
Walter Ritz<br />
Law of Series Spectra, Astrophysical Journal 28, 237 (Oct. 1908)<br />
(used by Niels Bohr in his 1913 paper on the constitution of atoms)
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