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Chlorine is the second halogen, being a nonmetal in group 17 of the periodic table. Its properties are thus similar to fluorine, bromine, and iodine, and are largely intermediate between those of the first two. Chlorine has the electron configuration [Ne]3s 2 3p 5, with the seven electrons in the third and outermost shell acting as its valence ...
41 of the 118 known elements have names associated with, or specifically named for, places around the world or among astronomical objects. 32 of these have names tied to the places on Earth, and the other nine are named after to Solar System objects: helium for the Sun; tellurium for the Earth; selenium for the Moon; mercury (indirectly), uranium, neptunium and plutonium after their respective ...
She was joined by another lungfish, named after Herb Caen, in 1952 [7] [8] or 1958. [2] She was given the name Methuselah by Steinhart Aquarium director John McCosker in 1988 after spending 50 years at the aquarium. [9] Due to damage incurred in the 1989 Loma Prieta earthquake, the original Steinhart Aquarium was torn down in 2005.
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups.Ambiguous common names are accompanied by their possible meanings.
Carl Wilhelm Scheele (German:, Swedish: [ˈɧêːlɛ]; 9 December 1742 – 21 May 1786 [2]) was a German Swedish [3] pharmaceutical chemist.. Scheele discovered oxygen (although Joseph Priestley published his findings first), and identified molybdenum, tungsten, barium, nitrogen, and chlorine, among others.
Among eight new species of fish identified in Peru's Alto Mayor region this year, the most shocking was the "blob-headed fish," according to a report published this month by the nonprofit group ...
Checking chlorine level of the local water source in La Paz, Honduras. Water chlorination is the process of adding chlorine or chlorine compounds such as sodium hypochlorite to water . This method is used to kill bacteria, viruses and other microbes in water.
The International Game Fish Association (IGFA) All Tackle World Record for fallfish is 3 pounds 9 ounces (1.6 kg), caught by Jonathan McNamara in the Susquehanna River near Owego, New York, USA on April 15, 2009. The record was tied on May 6, 2022, by angler Josh D. Dolin while fishing the Cowpasture River near Williamsville, Virginia. [7]