Rydberg
Encyclopedia
Rydberg can refer to:
- Rydberg (crater)Rydberg (crater)Rydberg is a lunar impact crater that is located on the far side of the Moon, just past the southwestern limb. It lies due south of the Mare Orientale, in the outer skirt of ejecta that surrounds the Orientale impact feature. Just to the southeast is the crater Guthnick.This is a little-eroded...
, a crater on the moon - In physics,
- Rydberg constantRydberg constantThe Rydberg constant, symbol R∞, named after the Swedish physicist Johannes Rydberg, is a physical constant relating to atomic spectra in the science of spectroscopy. Rydberg initially determined its value empirically from spectroscopy, but Niels Bohr later showed that its value could be calculated...
- Rydberg formulaRydberg formulaThe Rydberg formula is used in atomic physics to describe the wavelengths of spectral lines of many chemical elements. It was formulated by the Swedish physicist Johannes Rydberg, and presented on November 5, 1888.-History:...
- Rydberg atomRydberg atomthumb|right|300px|Figure 1: Energy levels in atomic [[lithium]] showing the Rydberg series of the lowest 3 values of [[Angular momentum#Angular momentum in quantum mechanics|orbital angular momentum]] converging on the first ionization energy....
(an atom in a state of high principal quantum numberPrincipal quantum numberIn atomic physics, the principal quantum symbolized as n is the firstof a set of quantum numbers of an atomic orbital. The principal quantum number can only have positive integer values...
) - Rydberg molecule
- a unit of energy, derived from the Rydberg constant, equal to half the Hartree energy
- Rydberg constant
- Johannes RydbergJohannes RydbergJohannes Robert Rydberg, , , was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to predict the wavelengths of photons emitted by changes in the energy level of an electron in a hydrogen atom.The physical constant known as the...
, Swedish physicist and deviser of the Rydberg formula, in whose honour the constant, the unit and the crater are named, as are Rydberg atoms - Viktor RydbergViktor RydbergAbraham Viktor Rydberg was a Swedish writer and a member of the Swedish Academy, 1877-1895...
, Swedish author and poet - Per Axel RydbergPer Axel RydbergPer Axel Rydberg was a Swedish-born, American botanist who was the first curator of the New York Botanical Garden Herbarium. -Biography:...
, Swedish-American botanist