Hydrogen is the most familiar name even a high school student can recognize without introduction. The scientist Henry Cavendish first discovered it. Approximately 73% of the mass of the universe is composed of it. Hence, the hydrogen spectrum has the most conspicuous place in spectroscopy. But what we need to know is the hydrogen spectrum has only six series discovered yet. These are altogether known as the hydrogen spectrum series.
The hydrogen spectrum series consists of distinct and discrete spectral lines in the ultraviolet, visible, and infrared regions. The study of the hydrogen spectral emissions helps astronomers to identify the presence of hydrogen in celestial bodies. It assists in understanding the temperature and density of hydrogen gas in the stars and calculating their redshifts.
The hydrogen spectrum has six series named by the scientists who discovered them. They are the sequence of spectral emissions arranged based on their wavelengths in the electromagnetic region of the hydrogen atomic spectrum. The names of those six hydrogen spectrum series are;
Lyman series
Balmer series
Paschen series
Brackett series
Pfund series
Humphrey’s series
1. Hydrogen
Hydrogen
Hydrogen is the first element of
the periodic table with atomic
number one.
H
1.008
1
The scientist Henry Cavendish
first discovered it in 1766. The
element was named hydrogen by
the French chemist Antoine
Lavoisier.
Approximately 73% of the
mass of the universe is
composed of it.
Hydrogen has the lowest density
of all gases. It is about 14 times
lighter than air.
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