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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).
What is the simble for helium?
To correct your spelling it is 'Symbol' The symbol for helium is ' He '. It is the second element in the Periodic Table.
Is helium paramagnetic?
AnswerThere are two variants of helium -- helium 3 and helium 4. Helium 4 is not magnetic but helium 3 is. Its magnetism is, however, of different nature than e.g. that of iron. The magnetism of helium 3 is used for medical lung imaging.
Is helium gas a compound?
No, helium gas is not a compound. Helium is an element, which means it consists of only one type of atom.
A helium balloon contains 0.46 g of helium how many moles of helium does it contain?
To find the number of moles of helium in the balloon, you need to divide the mass of helium by its molar mass. The molar mass of helium is approximately 4 g/mol. Therefore, 0.46 g of helium is equal to 0.46 g / 4 g/mol = 0.115 mol of helium in the balloon.
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 did Frenchman Pierre Janssen and Englishman Norman Lockyer discover helium?
In our sun.
Where was helium first discoved?
In 1868 by Pierre Janssen.
Where was helium discoved and by who?
Pierre Janssen was a French astronomer who discovered helium in 1868. India.
Who is the founder of element of helium?
Helium was discovered in 1868 by Pierre Janssen and Norman Lockyer
Who is helium discoverer?
Norman Lockyer and Pierre Jules César Janssen
How did Pierre janssen find helium?
he found it in the middle of an eclipse. he saw a yellow line across the sky which turned out be helium.
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.
Who discover the helium?
the one who discovered helium is Pierre jules Cesar or if you go on Google they'd say Pierre jansaan
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.
