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The hydrogen spectral series can be expressed simply in terms of the Rydberg constant for hydrogen and the Rydberg formula. In atomic physics , Rydberg unit of energy , symbol Ry, corresponds to the energy of the photon whose wavenumber is the Rydberg constant, i.e. the ionization energy of the hydrogen atom in a simplified Bohr model.
Johannes (Janne) Robert Rydberg (Swedish: [ˈrŷːdbærj]; 8 November 1854 – 28 December 1919) was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to describe the wavelengths of photons (of visible light and other electromagnetic radiation) emitted by changes in the energy level of an electron in a hydrogen atom.
This template provides easy inclusion of the latest CODATA recommended values of physical constants in articles. It gives the most recent values published, and will be updated when newer values become available, which is typically every four years.
This is an indirect method of measuring α, based on measurements of the masses of the electron, certain atoms, and the Rydberg constant. The Rydberg constant is known to seven parts in a trillion. The mass of the electron relative to that of caesium and rubidium atoms is also known with extremely high precision. If the mass of the electron can ...
Reduced Planck constant or Dirac constant (-bar, ħ) – Max Planck, Paul Dirac; Ramanujan–Soldner constant – Srinivasa Ramanujan and Johann Georg von Soldner; Richardson constant – Owen Willans Richardson; Rayo's number – Agustin Rayo; Rydberg constant – Johannes Rydberg; Sommerfeld constant – Arnold Sommerfeld
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Rydberg matter [1] is an exotic phase of matter formed by Rydberg atoms; it was predicted around 1980 by É. A. Manykin, M. I. Ozhovan and P. P. Poluéktov. [2] [3] It has been formed from various elements like caesium, [4] potassium, [5] hydrogen [6] [7] and nitrogen; [8] studies have been conducted on theoretical possibilities like sodium, beryllium, magnesium and calcium. [9]
Figure 1: Electron orbital of a Rydberg atom with n=12. Colors show the quantum phase of the highly excited electron. Colors show the quantum phase of the highly excited electron. Figure 2: Energy levels in atomic lithium showing the Rydberg series of the lowest 3 values of orbital angular momentum converging on the first ionization energy.