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	Search Encyclopedia.com (Site not responding. Last check: 2007-11-07)
		formula weight formula weight, in chemistry, a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a formula by the number of atoms of that element present in the formula, and then adding all of these products together.
		Rydberg, Johannes Robert Rydberg, Johannes Robertyoo´hänes rô´bert rüd´bĕrye, 1854-1919, Swedish physicist.
		Rydberg was a professor at Lund from 1901 to 1919.
	www.encyclopedia.com /searchpool.asp?target=Rydberg+formula (431 words)

	Rydberg formula: Definition and Links by Encyclopedian.com - All about Rydberg formula (Site not responding. Last check: 2007-11-07)
		The rydberg formula is used in atomic, molecular, and optical physics for determining the full spectrum of light emission from hydrogen, later extended to be useful with any element.
		The fomula was invented by the Swedish physicist Janne Rydberg and presented on November 5, 1888.
		$R$ is the Rydberg constant for this element.
	www.encyclopedian.com /ry/Rydberg-formula.html (212 words)

	Johannes Rydberg
		Johannes Rydberg, commonly known as Janne Rydberg, (November 8, 1854 - December 28, 1919), was a Swedish physicist mainly known for devising the Rydberg formula, which is used to predict the wavelengths of photons (of light and other electromagnetic radiation) emitted by changes in the energy level of an electron in an atom.
		The physical constant known as the Rydberg constant is named after him.
		Excited atoms with very high values of the principal quantum number, represented by n in the Rydberg formula, are called Rydberg atoms, and a crater on the moon is also named Rydberg in his honour.
	www.starrepublic.org /encyclopedia/wikipedia/j/jo/johannes_rydberg.html (125 words)

	Rydberg constant: Definition and Links by Encyclopedian.com - All about Rydberg constant (Site not responding. Last check: 2007-11-07)
		The rydberg constant is named after physicist Janne Rydberg, and is a physical constant discovered when measuring the spectrum of hydrogen, and building upon results from Anders Jonas Ångström and Johann Balmer[?].
		Which gives the Rydberg constant for a certain atom with one electron with the rest mass $m$ and the atomic nucleus mass $M$ .
		As the formula for the Rydberg constant contains no less than five other physical constants, namely the elementary charge $e$ , the electron rest mass $m$ , the permittivity of vacuum $\epsilon-0$ , Planck's constant $h$ , and the speed of light in vacuum $c$ , it is one of the most well-determined physical constants.
	www.encyclopedian.com /ry/Rydberg-constant.html (182 words)

	Search Encyclopedia.com (Site not responding. Last check: 2007-11-07)
		Formulas for the Volumes of Some Common Solids math.
		Rydberg constant Rydberg constantrĬd´berg, physical constant used in studies of the spectrum of a substance.
		The molecular weight may be calculated from the molecular formula of the substance; it is the sum of the atomic weights of the atoms making up the molecule.
	www.encyclopedia.com /search.asp?target=Rydberg+formula&rc=10&fh=29&fr=11 (304 words)

	Empirical formula - Encyclopedia, History, Geography and Biography
		In chemistry, the empirical formula of a chemical is a simple expression of the relative number of each type of atom (called a chemical element) in it.
		In contrast, the molecular formula identifies the absolute number of atoms of such element to be found in each discrete molecule of that compound.
		An example was the Rydberg formula to predict the wavelengths of hydrogen spectral lines.
	www.arikah.com /encyclopedia/Empirical_formula (255 words)

	Rydberg formula - Encyclopedia, History, Geography and Biography
		The Rydberg formula (Rydberg-Ritz formula) is used in atomic physics for determining the full spectrum of light emission from hydrogen, later extended to be useful with any element.
		The formula above can be extended for use with any hydrogen-like chemical elements.
		It's important to notice that this formula can be applied only to hydrogen-like, also called hydrogenic atoms chemical elements, i.e.
	www.arikah.net /encyclopedia/Rydberg_formula (267 words)

	Rydberg Transitions
		Rydberg transitions may be split by core asymmetries, but the splittings decrease with increasing n because the core becomes better modeled as a point charge as the electron radius increases.
		The oscillator strength of the lowest Rydberg transition in a series never exceeds 0.08 per degree of degeneracy, whereas for valence shell transitions values of 0.3-1.0 are easy to achieve (the V state transition in ethylene has 0.34).
		Rydberg excitations beyond the first ionization potential are typically broadened by autoionization and appear as a broad band on the continuum.
	vergil.chemistry.gatech.edu /notes/excd/node2.html (1715 words)

	Encyclopedia: Rydberg formula (Site not responding. Last check: 2007-11-07)
		The spectrum is the set of wavelengths of photons emitted when electrons jump between discrete energy levels, "shells" around the atom of a certain chemical element.
		The formula was invented by the Swedish physicist Janne Rydberg and presented on November 5, 1888.
		Janne Rydberg Johannes Rydberg, commonly known as Janne Rydberg, (November 8, 1854 - December 28, 1919), was a Swedish physicist mainly known for devising the Rydberg formula, in 1888, which is used to predict the wavelengths of photons (of light and other electromagnetic radiation) emitted by changes in the energy level...
	www.nationmaster.com /encyclopedia/Rydberg-formula (927 words)

	Rydberg (Site not responding. Last check: 2007-11-07)
		Rydberg received his bachelor's degree in 1875 from the University of Lund.
		In 1882 Rydberg moved from a lectureship in mathematics to become a lecturer in physics at Lund.
		Rydberg's most important work is on spectroscopy where he found a relatively simple expression relating the various lines in the spectra of the elements (1890).
	www-groups.dcs.st-and.ac.uk /~history/Mathematicians/Rydberg.html (438 words)

	Rydberg constant - Encyclopedia, History, Geography and Biography
		Each chemical element has its own Rydberg constant, which can be derived from the "infinity" Rydberg constant.
		The "infinity" Rydberg constant is (according to 2002 CODATA results):
		which gives the Rydberg constant for a certain atom with one electron with the rest mass $m_e \$ and the atomic nucleus mass $M \$ .
	www.arikah.net /encyclopedia/Rydberg_constant (185 words)

	Rydberg and autoionizing state spectroscopy of laser-ablated carbon
		We have studied the high principal quantum number 2pnp Rydberg states of atomic carbon converging to the two spin-orbit states of the ground state of the ion.
		The Rydberg states were field-ionized using a 170 V/cm pulse, delayed by 100 ns from the excitation laser pulses.
		This spectrum is a beautiful example of Rydberg state channel interactions, and a collaborative effort to produce a theoretically predicted spectrum to compare with experiment is planned, with Francis Robicheaux at Auburn University.
	www.phys.ttu.edu /~gglab/rydberg_and_autoion.html (658 words)

	Chemistry 103A; Sections 5, 6, 7, 8; Lecture 1; 21 Aug 00
		The series from the first formula is called the Lyman series after the physicist who found it, and the series from the second formula is called the Paschen series after its discoverer.
		He assumed that Planck's formula for the energy of a photon was correct and then converted the Rydberg equation for wavelength into an equation in terms of energy rather than wavelength.
		Formulas like Bohr's formula for the allowed energies of the electron in a hydrogen atom were a new thing in physics.
	www.chem.arizona.edu /~salzmanr/103a004/nts004/l18/l18.html (1639 words)

	YCLS - ZEKE Theory (Site not responding. Last check: 2007-11-07)
		To understand the longevity of the high-n Rydberg states requires a brief description of the physical aspects of such systems and thus the means by which their lifetime is extended to a timescale useful to experiment.
		In a classical sense, a Rydberg state may be pictured as an electron orbiting an ionic [molecular] core at an extremely high average separation, such that for the majority of a single orbit, the electron experiences only the electrostatic potential due to a point positive charge.
		The energy of a given level may be found by the Rydberg formula [2], as expressed in equation 1.
	www.york.ac.uk /res/ycls/info/ryd.shtml (478 words)

	Rydberg formula (Site not responding. Last check: 2007-11-07)
		The Rydberg formula is used in atomic physics fordetermining the full spectrum of light emission from hydrogen, later extended to beuseful with any element.
		Z is the atomic number i.e.number of protons in the atomicnucleus of this element.
		It's important to notice, that this formula can be applyed only to hydrogen-like chemical element, i.e.
	www.therfcc.org /rydberg-formula-125141.html (215 words)

	Rydberg state? (Site not responding. Last check: 2007-11-07)
		A Rydberg state is a state of an atom or molecule in which one of the electrons has been excited to a high principal quantum number orbital.
		The quantum defect describes how much the Rydberg series departs from the behavior of the Rydberg states of atomic hydrogen, and is directly related to the interaction of the excited electron with the leftover ion core.
		If, in one or more of the channels in the energy range of interest, the excited electron is unbound (open channels), this channel interaction leads to a mixing of the bound states (in closed channels) with the unbound states and the process of autoionization.
	www.phys.ttu.edu /~gglab/rydberg_state.html (409 words)

	Rydberg formula - Encyclopedia Glossary Meaning Explanation Rydberg formula (Site not responding. Last check: 2007-11-07)
		Rydberg formula - Encyclopedia Glossary Meaning Explanation Rydberg formula.
		Here you will find more informations about Rydberg formula.
		The orginal Rydberg formula article can be editet
	www.encyclopedia-glossary.com /en/Rydberg-formula.html (238 words)

	Station Information - Johannes Rydberg (Site not responding. Last check: 2007-11-07)
		Johannes Rydberg, more known as Janne Rydberg, (1854 - 1919) was a Swedish physicist mostly known for creating the Rydberg formula, which is used to predict which wavelengths that photons (i.e.
		The physical constant known as the Rydberg constant is named after him, and a crater on the moon is also named Rydberg in his honour.
		Rydberg formula, Rydberg constant, List of Swedish scientists''
	www.stationinformation.com /encyclopedia/j/jo/johannes_rydberg.html (102 words)

	Rydberg constant (Site not responding. Last check: 2007-11-07)
		Each chemical element has it's own Rydberg constant, but most commonly referred to is the "infinity"constant.
		Which gives the Rydberg constant for a certain atom with one electron with the rest mass m and the atomic nucleus mass M.
		Measuring the Rydberg constant namelyconfirms the proportions of the values of the other five constants.
	www.therfcc.org /rydberg-constant-143851.html (166 words)

	Encyclopedia: Johannes Robert Rydberg (Site not responding. Last check: 2007-11-07)
		November 8 is the 312th day of the year (313th in leap years) in the Gregorian Calendar, with 53 days remaining.
		Electromagnetic radiation or EM radiation is a combination (cross product) of oscillating electric and magnetic fields perpendicular to each other, moving through space as a wave, effectively transporting energy and momentum.
		Swedish scientists The Rydberg formula (Rydberg-Ritz formula) is used in atomic physics for determining the full spectrum of light emission from hydrogen, later extended to be useful with any element.
	www.nationmaster.com /encyclopedia/Johannes-Robert-Rydberg (584 words)

	Hydrogen Spectra
		This is known as the Rydberg formula, and R is known as the Rydberg constant, its numerical values depends on the units used
		The reciprocal of wl (1/wl) is the number of waves per unit length, and it is called the wavenumber.
		The results given by Balmer and Rydberg for the spectrum in the visible region of the electromagnetic radiation start with n = 3, and the other integer is 2.
	www.science.uwaterloo.ca /~cchieh/cact/c120/hspectra.html (625 words)

	[No title] (Site not responding. Last check: 2007-11-07)
		For the visible series, the longest wavelength line at 6563 A is assigned the integer three, the line at 4862 A is assigned 4, etc. Later Rydberg generalized the Balmer formula to account for all of the series over all spectral regions.
		This formula involved a constant, R, the Rydberg constant.
		Niels Bohr was the first to account for the Rydberg formula in terms of the structure of the and microscopic behavior of the motion of the electron as it moved around the nucleus.
	faculty.washington.edu /callis/Chem455/Su-97/C455.Su97.Lec2.abst.html (370 words)

	Cryo-MOT (Site not responding. Last check: 2007-11-07)
		Rydberg atoms are atoms in highly excited states.
		Their name comes from the Rydberg formula which describes the energy levels of the hydrogen atom.
		Rydberg atoms possess properties which make them useful not only for the study of basic physics, but in potential application as extremely sensitive field sensors or in a physical manifestation of a quantum computer.
	quaser.physics.lsa.umich.edu /projects/cryomot (164 words)

	The Balmer Relationship (Site not responding. Last check: 2007-11-07)
		In 1890, Balmer's formula was revised by Johannes Robert Rydberg (1854-1919) to be expressed in wave numbers (1/lambda).
		It was not until after 1908 that improvements in spectroscopy allowed other series of lines to be actually found in the infrared and ultraviolet region of the electromagnetic spectrum.
		Example Calculation: Using Balmer's original formula, calculate the wavelength of the wavelength of the line Balmer predicted at the edge of the violet.
	gemini.tntech.edu /~tfurtsch/scihist/balmer.htm (334 words)

	Appendix II
		Remarkably, Balmer was playing with numbers, and came across a formula that would later aid in the development of quantum mechanics.
		Later it was understood by Rydberg that all emission lines in the hydrogen spectrum obey the equation:
		Work to figure out the origin of this formula led to the discovery of the structure of atoms and the world of quantum mechanics that is responsible for that structure.
	www.colorado.edu /physics/phys1020/phys1020_sp02/Lab3BalmerApp.html (249 words)

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