Rydberg


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Related to Rydberg: Rydberg atom

rydberg

[′rid‚bərg]
(atomic physics)
A unit of energy used in atomic physics, equal to the square of the charge of the electron divided by twice the Bohr radius; equal to 13.605698 ± 0.000004 electronvolts. Symbolized ry.
(spectroscopy)

Rydberg

 

(Ry), a subsidiary unit of energy used in atomic physics and optics. It was named in honor of J. R. Rydberg. It is defined by the equation 1 Ry = hcR, where h is Planck’s constant, c is the velocity of light, and R is the Rydberg constant; numerically, 1 Ry = 13.60 electron volts—that is, 1 Rydberg is equal to the ionization energy of an atom of hydrogen. The Rydberg is a convenient unit for measuring the energy of atomic states. In the Hartree atomic system of units, 1 Ry is equal to one-half of an energy unit; in the centimeter-gram-second system, 1 Ry = 2.1796 × 10-11 erg.

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Rydberg has shared his thoughts in several well-reasoned letters to the OMNR: "The economic value of Lake of the Woods in North America is in excess of $125 million per year, with 75 major tourist resorts on the lake.
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Jacobson, B., Nyberg, K., Eklund, G., Bygdeman, M., & Rydberg, U.
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25, 1938, in Shell Lake, Wis., to Elvera and Ernie Rydberg. His life partner of 15 years was Karen Hingel.
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