= µ 0
2 me
4
c
3
/8h
3 , where µ 0 is the magnetic constant, m and e are the mass
and charge of an electron, c is the
speed of light, and h is the *Planck
constant. It has the value 1.097 × 10
7
m
–1
. It is named after the Swedish
physicist Johannes Robert Rydberg
(1854–1919), who developed a formula for the spectrum of hydrogen.
Rydberg spectrum An absorption
spectrum of a gas in the ultraviolet
region, consisting of a series of lines
that become closer together towards
shorter wavelengths, merging into a
continuous absorption region. The
absorption lines correspond to electronic transitions to successively
higher energy levels. The onset of
the continuum corresponds to pho469
Rydberg spectrum
r
www.AzShimi.ir www.AzShimi.com