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...
- 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...
- Lanthanum (la)
Term: lanthanum (La)Literally meaning: ?pertaining to hidden?Origin: ???????/lanthano(= to be hidden, to escape notice) .The element called lanthanum because it is ?hidden? in rare minerals. Coined/History Lanthanum was isolated in the mineral...
- Molybdenium (mo)
Term: molybdenium (Mo)Literally meaning: ?pertaining to lead?Origin: Anc Greek????????/molybdos(=lead)Coined/History In 1778, Swedish chemist Carl Wilhelm Scheele (1742-1786) claimed that molybdena (MoS2) was an ore of a distinct new element,...
- Bromine (br)
Term: bromine (Br)Literally meaning: ?unpleasant odor?Origin: Anc Greek?????? ? ??????/vromos(=unpleasant odor)Coined/History Bromine discovered independently by German Carl Lowig (1803-1890) in 1825 from a mineral...
Biology
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
In 1882 Bohuslav Brauner announced that ?didymium? incorrectly was said by Carl Mosander to be a new element (1841). In 1885 Baron Carl Auer Welsbach (1858-1929) recognized that ?didymium? was consisted of two new elements: praseodimium and neodymium. Welsbach reacted ?didymium? to form greenish-brown praseodymium and pink neodymium salts.
Definition
The element Praseodymium is a chemical element with atomic number 59 and atomic mass 140.90765. It is used mainly for coloring glass and ceramics.
- 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...
- 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...
- Lanthanum (la)
Term: lanthanum (La)Literally meaning: ?pertaining to hidden?Origin: ???????/lanthano(= to be hidden, to escape notice) .The element called lanthanum because it is ?hidden? in rare minerals. Coined/History Lanthanum was isolated in the mineral...
- Molybdenium (mo)
Term: molybdenium (Mo)Literally meaning: ?pertaining to lead?Origin: Anc Greek????????/molybdos(=lead)Coined/History In 1778, Swedish chemist Carl Wilhelm Scheele (1742-1786) claimed that molybdena (MoS2) was an ore of a distinct new element,...
- Bromine (br)
Term: bromine (Br)Literally meaning: ?unpleasant odor?Origin: Anc Greek?????? ? ??????/vromos(=unpleasant odor)Coined/History Bromine discovered independently by German Carl Lowig (1803-1890) in 1825 from a mineral...