The meaning of OXYGEN is a chemical element with atomic number 8 that constitutes 21 percent of the Earth's atmosphere, that is capable of combining with all elements except some noble gases, that is active in physiological processes of almost all known
Oxygenis one of the basic elements of substance. 氧是物质的基本元素之一. 《简明英汉词典》 Qualitative analysis shows that water is made up of hydrogen andoxygen. 定性分析表明水是由氢氧结合而成的. 《简明英汉词典》 Hydrogen andoxygenare the constituents of water. ...
” referring to the sharp taste of acids, and “genēs” meaning “producer.” It is a chalcogen and is highly reactive, forming compounds such as oxides with most other elements. Oxygen is
网络释义 1. 氧脱木素 脱氧元素,deoxidant... ... ) deoxidant elements 脱氧元素 )oxygen delignification氧脱木素) anthrarobin 脱氧茜素 ... www.dictall.com|基于8个网页 2. 氧脱木质素 两段氧... ... ) oxygen delignification 氧脱木素 )oxygen delignification氧脱木质素) delignification stages 脱...
The large values of theelectronegativityand theelectron affinityof oxygen are typical of elements that show only nonmetallic behaviour. In all of its compounds, oxygen assumes a negativeoxidation stateas is expected from the two half-filled outer orbitals. When these orbitals are filled by electron ...
Chemical reactions can change the chemical state of the oxygen atom, which can lead to detachment of the oxygen atom from its normal position. For example, in some oxygen-containing compounds, the oxygen atom forms chemical bonds with other elements. When these chemical bonds are broken, it lea...
Oxygen is extremely reactive and forms oxides with nearly all other elements except noble gases. Oxygen dissolves more readily in cold water than warm water. As a result of this, our planet’s cool, polar oceans are more dense with life than the warmer, tropical oceans. ...
Abundances of several elements in each star are determined, with the ... C Sneden,RP Kraft,CF Prosser,... - 《Astronomical Journal》 被引量: 529发表: 1992年 Oxygen Abundances in Unevolved Metal‐poor Stars from Near‐Ultraviolet OH Lines We have performed a detailed oxygen abundance analysis...
Lipid oxidation and formation of oxygen radicals are important elements of arterial plaque formation and atherosclerosis, and are involved in the pathophysiology of cardiovascular disease. Several potential mechanisms have been suggested to play a potential role in the antiatherogenic and cardioprotective eff...