Rydberg formula Guide, Meaning , Facts, Information and Description

The Rydberg formula is used in atomic physics for determining the full spectrum of light emission from hydrogen, later extended to be useful with any element.

A piece of the original document detailing the Rydberg formula in 1888.

The spectrum are the wavelengths of photons emitted when electrons jump between discrete energy levels, "shells" around the atom of a certain chemical element.

The fomula was invented by the Swedish physicist Janne Rydberg and presented on November 5, 1888.

Rydberg formula for hydrogen

Where

• is the wavelength of the light emitted in vacuum.
• is the Rydberg constant for hydrogen.
• and are integers such that .

By setting to 1 and letting run from 2 to infinity, the spectral lines known as the Lyman series converging to 91nm are obtained, in the same manner:

		Name	Converge toward
1		Lyman series	91nm
2		Balmer series	365nm
3		Paschen series	821nm

Rydberg formula for any hydrogen-like element

The formula above can be extended for use with any hydrogen-like chemical elements.

where

• is the wavelength of the light emitted in vacuum;
• is the Rydberg constant for this element;
• is the atomic number, i.e. the number of protons in the atomic nucleus of this element;
• and are integers such that .

It's important to notice that this formula can be applied only to hydrogen-like chemical elements, i.e. elements with only one electron on external system of orbitals. Actually, it can only be applied to such elements as lithium, sodium, etc.; even so it can't describe all the spectrum lines of these elements.

This is an Article on Rydberg formula. Page Contains Information, Facts Details or Explanation Guide About Rydberg formula

	Web www.E-paranoids.com