reactive metal
121potassium — /peuh tas ee euhm/, n. Chem. a silvery white metallic element that oxidizes rapidly in the air and whose compounds are used as fertilizer and in special hard glasses. Symbol: K; at. wt.: 39.102; at. no.: 19; sp. gr.: 0.86 at 20°C. [1800 10; < NL; …
122soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
123Ruthenium — (pronEng|ruːˈθiːniəm) is a chemical element that has the symbol Ru and atomic number 44. A rare transition metal of the platinum group of the periodic table, ruthenium is found associated with platinum ores and used as a catalyst in some platinum …
124Aldol reaction — The aldol reaction is a powerful means of forming carbon–carbon bonds in organic chemistry.[1][2][3] Discovered independently by …
125Pro-oxidant — Pro oxidants are chemicals that induce oxidative stress, either through creating reactive oxygen species or inhibiting antioxidant systems. [cite journal |author=Puglia CD, Powell SR |title=Inhibition of cellular antioxidants: a possible… …
126Non-innocent ligand — In chemistry, a (redox) non innocent ligand is a ligand in a metal complex where the oxidation state is unclear. Typically, complexes containing non innocent ligands are redox active at mild potentials. The concept assumes that redox reactions in …
127Rocket-propelled grenade — RPG, or rocket propelled grenade, is a loose term describing hand held, shoulder launched anti tank weapons capable of firing an unguided rocket equipped with an explosive warhead. RPG is a transliteration of РПГ, the Russian abbreviation of… …
128Electron beam physical vapor deposition — or EBPVD is a form of physical vapor deposition in which a target anode is bombarded with an electron beam given off by a charged tungsten filament under high vacuum. The electron beam causes atoms from the target to transform into the gaseous… …
