helium (He)
Biology

helium (He)



Term: helium
Literally meaning: ?pertaining to sun?
Origin: Anc Greek
???? (or according Homer ???????/yelios)/helios (=sun)  of unknown etymology  probably from ?ç///(certainly, indeed, always) and verb ????/elao(=move)  >?????????/elefsomai(=go up, come in)
Coined/History 
The element was named in 1868 by English astronomer Sir Joseph N. Lockyer (1836-1920) and his coworker English chemist Sir Edward Frankland (1825-1899). Lockyer used during a solar eclipse in India, a spectometer for the first time in the study of the chromosphere around the sun and noticed among other bright stripes a yellow one.  Lockyer wrote ? ?so then we knew we were not dealing with hydrogen:; hence we had to do with an element which we could not get in our laboratories, and therefore I took upon myself the responsibility of coining the word helium, in the first instance for labarotary use..? Helium existence was not accepted until William Ramsey isolated it in 1895. Ramsey had codiscovered also noble gas argon in 1894.

Definition
Helium (He)  is chemical element  with atomic number 2 and atomic mass 4.002602. It is a colorless, odorless, tasteless element and is the lighter of the noble gases. It is also the second most abundant element in the observable universe. 




- Thallium (tl)
Term: thallium (Tl)Literally meaning: ?pertaining to green young shoot ?Origin: Origin: Anc Greek ??????/thallos(=young shoot, green branch, twig) > ?????/threpho(=feed)The element named because of  the bright green line in its spectrumCoined/History...

- Barium (ba)
Term: barium (Ba)Literally meaning: ?pertaining to heavy?Origin: Anc Greek?????/varys(=heavy) The element was called barium because it is found in baryte(BaSO4),  a mineral which had been given its name because of its high Coined/History  Barium...

- Xenon (xe)
Term: xenon (Xe)Literally meaning: ?strange, unknown?Origin: Anc Greek?????/xenos(=sranger, foreigner, guest)Coined/History  It is amazing that in 42 days in 1908 English chemist Morris W. Travers (1872?1961) discovered three chemical elements neon,...

- Argon (ar)
Term: argon (Ar)Literally meaning: ?slow?Origin: Anc Greek'á??ü? < 'á???ü?(=lazy, idle, not working the ground, living without labor) Coined/History  William Ramsey (1852-1916) The name is a reference to the fact...

- Neon (ne)
Term: neon (Ne)Literally meaning: ?new?Origin: Anc Greek????/neos(=new)Coined/History  It is amazing that in 42 days in 1908 English chemist Morris W. Travers (1872?1961) discovered three chemical elements neon, xenon, and krypton.  From 1895...



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