Biology
- 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...
- Dysprosium (dy)
Term: dysprosium (Dy)Literally meaning: ?pertaining to not accessible ?Origin ???-/dys-(=prefix used with a negative sense meaning ?difficult?, ?bad?, ?abnormal?, ?misfortune?) > ???/dyo(=decline) ????/dysi(=sundown)+????????/prositos (=accessible)>...
- Praseodymium (pr)
Term: praseodymium (Pr)Literally meaning: ?pertaining to green twin ?Origin: ????????/prassios(=green)+???????/didimos(=twin)The element called praseodymium because it was isolated from material named ?didymium? and forms greenish-brown salts. Coined/History ...
- Technetium (tc)
Term: technetium (?c)Literally meaning: ?pertaining to artificial?Origin: Anc Greek????????/technetos(=hand made, artificial) > ????? (verb)/ticto (=give birth, produce) Coined/History Technetium?s existence was predicted by Dmitri...
- Chlorine (cl)
Term: chlorine (Cl)Literally meaning: ??Origin: Anc Greek??????/cloros(=green-yellow)Coined/History Although sodium cloride was known since ancient times it was not until in 1630 when Belgian physician Jan Baptist van Helmont obtained...
Biology
thulium (Tm)
Term: thulium (Tm)
Literally meaning: ?pertaining to Thoule land?
Origin
According Greek explorer Pytheas of Massalia (4 t6h cen BC) Thoulewas the northernmost habitable region of the world. Pytheas about 330 BC was travelled to England and then to Thule where the night was very short (2-3 hours) and its north sea solid.
The name of element was given after Thule, the region in the far north as Scandinavia land where the element had been found.
Coined/History
Thulium was found by Swedish chemist Per Teodor Cleve in 1879 while trying to purify erbia (Er2O3) from known impurities. He obtained finally two substances; one brown (oxide of element holmium) and one green (oxide of element thulium).
Definition
Thulium is a chemical element with atomic number 69 and atomic mass 168.93421. It is used in portable X-ray devices, in alloys with other rare metals and in solid-state lasers.
- 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...
- Dysprosium (dy)
Term: dysprosium (Dy)Literally meaning: ?pertaining to not accessible ?Origin ???-/dys-(=prefix used with a negative sense meaning ?difficult?, ?bad?, ?abnormal?, ?misfortune?) > ???/dyo(=decline) ????/dysi(=sundown)+????????/prositos (=accessible)>...
- Praseodymium (pr)
Term: praseodymium (Pr)Literally meaning: ?pertaining to green twin ?Origin: ????????/prassios(=green)+???????/didimos(=twin)The element called praseodymium because it was isolated from material named ?didymium? and forms greenish-brown salts. Coined/History ...
- Technetium (tc)
Term: technetium (?c)Literally meaning: ?pertaining to artificial?Origin: Anc Greek????????/technetos(=hand made, artificial) > ????? (verb)/ticto (=give birth, produce) Coined/History Technetium?s existence was predicted by Dmitri...
- Chlorine (cl)
Term: chlorine (Cl)Literally meaning: ??Origin: Anc Greek??????/cloros(=green-yellow)Coined/History Although sodium cloride was known since ancient times it was not until in 1630 when Belgian physician Jan Baptist van Helmont obtained...