Rydberg Constant

Rydberg constant is a physical constant named after Swedish physicist Johannes Rydberg. The constant relates atomic spectra, in the science of spectroscopy and is denoted by the symbol R. It is the constant for heavy atoms or RH for hydrogen. The constant is used in limiting the value of the highest wavenumber of any photon that can be emitted from the hydrogen atom.

Constant Name

Rydberg Constant

Symbol : R = α^2 m_e c / 2 h

Unit : m-1

Value : 10 973 731.568 525(73)

The Rydberg unit of energy, symbol Ry, is closely related to the Rydberg constant.

The Rydberg unit of energy, symbol Ry, is closely related to the Rydberg constant.

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