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he found it in the middle of an eclipse. he saw a yellow line across the sky which turned out be helium.
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∙ 12y ago
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When did Pierre Janssen discover helium?
Helium was discovered in 1895.
What day did Pierre Janssen discover helium?
Pierre Janssen discovered the lines of helium in the spectra of the Sun on 18 August 1868 at Guntur (India).
Where was helium first discoved?
In 1868 by Pierre Janssen.
Who is the founder of element of helium?
Helium was discovered in 1868 by Pierre Janssen and Norman Lockyer
Where was helium discoved and by who?
Pierre Janssen was a French astronomer who discovered helium in 1868. India.
Who is helium discoverer?
Norman Lockyer and Pierre Jules César Janssen
Where did Frenchman Pierre Janssen and Englishman Norman Lockyer discover helium?
In our sun.
Founder of helium?
Helium is a naturally occurring element and was not invented by anyone.
What country was the discoverer of helium from?
Helium discoverey (which was spectrocopic) is attributed to Norman Lockyer who was English from Britian and Pierre Janssen who was French from France.
Which chemical element was found in gaseous state in the atmosphere surrounding the sun by scientist Pierre Janssen?
Helium
How discovered helium?
Pierre Janssen, who was a French astronomer discovered helium in 1868. It was the English astronomer Norman Lockyer who proposed the name helium after the Greek name of the sun, Helios.
Who is the discoverer of the helium?
The discovery of heliumHelium was discovered by the French astronomer Pierre Jules Cesar Janssen during a total solar eclipse in Guntur, India, in 1868. The same spectral emission lines were noted by the English astronomer Norman Lockyer, also in 1868, who proposed the name "helium," after Helios, the Sun God of Greek mythology. In 1895 Sir William Ramsay separated for the first time helium from air in laboratory; the same year this experiment was repeated independently by Per Theodor Cleve and Nils Langlet in Sweden.French Astronomer Pierre Jannssen.
