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...
- 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...
- 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,...
- 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...
- Lithium (li)
Term: lithium (Li)Literally meaning: ?pertaining to stone?Origin: Anc Greek?????/lithos(=stone, rock)Coined/History The element was named in 1817 by Sweeden chemist Johan August Arfvedsen (1792-01-12) when analysing petalite (LiAlSi4O10)...
Biology
manganese (Mn)
Term: manganese
Literally meaning: ?pertaining to magnitis?
Origin: Anc Greek
The name derived from Greek toponym (a prefecture in modern Greece) Magnesia as Manganese and Magnesium were abundant in ores in this region (Magnitis lithos, ???????? ?????). The name ???????? (Magnesia) derives from the name of the first settlers in the region, the "Magnetes" from the Macedonian tribe name Magnetes (????????).
Coined/History
About 17000 years ago, in stone age (paleolithic), human used manganese dioxide as apigment for the cave paintings.
In ancient Greece it was though that in ore ?Magnetes lithos? there were two mineral forms with different gender. The feminine ore was later called magnesia or pyrolusite and the male one was called magnenite. In the 16th cen pyrolusite called magnesis negra (black ore) by glassemakers in order to distinguish it from magnesia alba (also from Magnesia). The name magnesia eventually was then used to refer only to the white magnesia which gave the name to the element that isolated it.
Swedish-German chemist Carl Wilhelm Scheele (1742-1786) had used pyrolusite (manganese dioxide) and he noted that it contained a new element but he could not able to isolate it. Swedish minerologist Johann Goottlieb Gahn (1745-1818) was the first who isolated magnanese in 1774 by reducing its dioxide with Carbo.
Definition
Manganese is a gray-white chemical element with atomic number 25 and atomic mass 54.938045. It is occurring in several allotropic forms found worldwide especially in the ore pyrolusite and in nodules on the ocean floor. It is used mainly to increase strength in steel.
- 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...
- 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...
- 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,...
- 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...
- Lithium (li)
Term: lithium (Li)Literally meaning: ?pertaining to stone?Origin: Anc Greek?????/lithos(=stone, rock)Coined/History The element was named in 1817 by Sweeden chemist Johan August Arfvedsen (1792-01-12) when analysing petalite (LiAlSi4O10)...