Biology
- 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...
- 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...
- 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,...
- Titanium (ti)
Term: titaniumLiterally meaning: ?pertaining to Titans?Origin: Anc Greek?????/Titan(= in Greek Mythology Titans and their sisters Titanesses were giant and strong primordial dieities children of Gaia (Earth) and Uranus (sky). Titans were...
- Catalysis
Term: catalysis Origin: Anc Greek ????/cata(=prefix denoting ?down to? or ?against?)?????/lysis (=???/leo (break up, solve) à dissolution or a riot Jöns Jacob berzelius (1779 ?1848)Coined: in 1835 by Swedish...
Biology
selenium (Se)
Term: selenium (Se)
Literally meaning: ?pertaining to moon?
Origin: Anc Greek
??????/selene(=moon)
Coined/History
Selenium was named by Swedish chemist Jons Jacob Berzelius in 1817 ((1779-1848) when he noticed that selenium is associated with tellurium (named for the Earth). It was discovered as a byproduct of sulphuric acid production resulting from sulfide ores in mines of Falun (Sweden). Berzelius noticed that this element was contributing workers illness in the acid production.
In 1937 A. L Moxon he identified that selenium is the toxic element in some livestock-poisoning plants mistakenly called ?alkali disease?. Twenty years later the German Klaus Schwarz studied problems of liver necrosis in rats and he proved that selenium is an essential trace mineral nutrient.
Definition
Selenium is a chemical element with atomic number 34 and atomic mass of 78.96, that is found mainly in sulfide ores. It is necessary, in trace amounts, for some enzyme biosynthesis and function in many organisms, known as selenoproteins.
- 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...
- 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...
- 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,...
- Titanium (ti)
Term: titaniumLiterally meaning: ?pertaining to Titans?Origin: Anc Greek?????/Titan(= in Greek Mythology Titans and their sisters Titanesses were giant and strong primordial dieities children of Gaia (Earth) and Uranus (sky). Titans were...
- Catalysis
Term: catalysis Origin: Anc Greek ????/cata(=prefix denoting ?down to? or ?against?)?????/lysis (=???/leo (break up, solve) à dissolution or a riot Jöns Jacob berzelius (1779 ?1848)Coined: in 1835 by Swedish...