Search results
Results from the WOW.Com Content Network
The chlorine cycle (Cl) is the biogeochemical cycling of chlorine through the atmosphere, hydrosphere, biosphere, and lithosphere. Chlorine is most commonly found as inorganic chloride ions, or a number of chlorinated organic forms. [1] [2] Over 5,000 biologically produced chlorinated organics have been identified. [3]
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 ...
The chlorine atom, written often as Cl., behaves very differently from the chlorine molecule (Cl 2). The radical Cl. is long-lived in the upper atmosphere, where it catalyzes the conversion of ozone into O 2. Ozone absorbs UV-B radiation, so its depletion allows more of this high energy radiation to reach the Earth's surface.
Astronomers used the Hubble Space Telescope to make a landmark discovery of water vapor in the atmosphere of a planet just twice Earth’s diameter in size.
The Earth's crust is one "reservoir" for measurements of abundance. A reservoir is any large body to be studied as unit, like the ocean, atmosphere, mantle or crust. Different reservoirs may have different relative amounts of each element due to different chemical or mechanical processes involved in the creation of the reservoir. [1]: 18
The chemical fire sent chlorine into ... -place order for more than 90,000 residents east of Atlanta while some were told to evacuate after emergency officials found the BioLab facility showed ...
A single chlorine atom is able to react with an average of 100,000 ozone molecules before it is removed from the catalytic cycle. This fact plus the amount of chlorine released into the atmosphere yearly by chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) demonstrates the danger of CFCs and HCFCs to the environment. [21] [22]
Water vapor has been detected in the atmosphere of a Neptune-size exoplanet called TOI-674 b, which is located about 150 light-years away from Earth. Water vapor found in another planet's ...