Biology
- Plutonium (pu)
Term: plutonium (Pu)Literally meaning: ?pertainingto planet Pluto?Origin: ?????????/Plutonas(=Pluto was the god of underworld, son of Cronus and Rea and brother of Zeus. The earlier word of god was Hades/????)>???????/plutos(=wealth, riches) The...
- Uranium (u)
Term: uranium (U)Literally meaning: ?pertaining to planet Uranus ?Origin?'õ???ü?/uranos(=heaven, sky)???/ano (=above)+????/oros(=mountain)The name was given after the recently dicovered planet Uranus. The planet name was given by German astronomer...
- Astatine (at)
Term: astatine (At)Literally meaning: ?pertaining to unstable?Origin'á/(privative, ?non?) ???????/istamai(=stand)The element named after observation that there are no stable astatine isotopes as the longest lived isotope (astatine-210) has...
- 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,...
Biology
protactinium (Pa)
Term: protactinium (Pa)
Literally meaning: ?before actinium?
Origin
??????/protos(=first or of prime importance)
'á???? actis(genitive á??[é???/actinos)(=ray, beam)
The name was given in order to reflect the product of the decay process.
Coined/History
The element was discovered by Polish chemist Kasimir Fajans (1887-1975) and German chemist Oswald Gohring in 1913 by studying uranium?decay chain. They named the element ?brevium? meaning brief because the short half-life (1.17 minutes) of the isotope that they found. Protactinium was first isolated by Russian born American nuclear chemist Aristid V. Grosse in 1934 (1905-1985).
§ Oswald Helmuth Göhring: Über das neue Element Brevium und Versuche zur Auffindung seiner Isotopen. (Acerca del nuevo elemento brevium y los intentos de localizar sus isótopos). Tesis doctoral, Technischen Hochschule Fridericiana zu Karlsruhe, 1914. 58 pág.6
§ K. Fajans and O. H. Göhring, "Über das Uran X2-das neue Element der Uranreihe". ("Sobre el Uranio X2, el nuevo elemento de la serie del uranio") Phys. Zeitschrift, 1913, 14, 877?84.
Definition
Protactinium is a silvery-grey metallic and radioactive chemical element with atomic number 91 and atomic mass 231.03588.
- Plutonium (pu)
Term: plutonium (Pu)Literally meaning: ?pertainingto planet Pluto?Origin: ?????????/Plutonas(=Pluto was the god of underworld, son of Cronus and Rea and brother of Zeus. The earlier word of god was Hades/????)>???????/plutos(=wealth, riches) The...
- Uranium (u)
Term: uranium (U)Literally meaning: ?pertaining to planet Uranus ?Origin?'õ???ü?/uranos(=heaven, sky)???/ano (=above)+????/oros(=mountain)The name was given after the recently dicovered planet Uranus. The planet name was given by German astronomer...
- Astatine (at)
Term: astatine (At)Literally meaning: ?pertaining to unstable?Origin'á/(privative, ?non?) ???????/istamai(=stand)The element named after observation that there are no stable astatine isotopes as the longest lived isotope (astatine-210) has...
- 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,...