hardening element
81Queen's Medal — Die Royal Medal, auch The Queen s Medal genannt, ist eine von der Royal Society verliehene Auszeichnung für Wissenschaftler, die innerhalb des Commonwealth of Nations besonders wichtige Beiträge zur Weiterentwicklung der Wissenschaften geleistet… …
82Royal Medal — Die Royal Medal, auch The Queen s Medal genannt, ist eine von der Royal Society verliehene Auszeichnung für Wissenschaftler, die innerhalb des Commonwealth of Nations besonders wichtige Beiträge zur Weiterentwicklung der Wissenschaften geleistet… …
83titanium — /tuy tay nee euhm/, n. Chem. a dark gray or silvery, lustrous, very hard, light, corrosion resistant, metallic element, occurring combined in various minerals: used in metallurgy to remove oxygen and nitrogen from steel and to toughen it. Symbol …
84aluminum processing — Introduction preparation of the ore for use in various products. Aluminum, or aluminium (Al), is a silvery white metal with a melting point of 660° C (1,220° F) and a density of 2.7 grams per cubic centimetre. The most abundant… …
85Zinc — A mineral essential to the body, zinc is a constituent of many enzymes that permit chemical reactions to proceed at normal rates. It is involved in the manufacture of protein (protein synthesis) and in cell division. Zinc is also a constituent of …
86beryllium — A white metal element belonging to the alkaline earths; atomic no. 4., atomic wt. 9.012182. [G. beryllos, beryl] * * * be·ryl·li·um bə ril ē əm n a steel gray light strong brittle toxic bivalent metallic element used chiefly as a hardening agent… …
87ruthenium — A metallic element of the platinum group; atomic no. 44, atomic wt. 101.07; 106Ru, with a half life of 1.020 years, has been used in the treatment of certain eye problems. [Mediev. L. Ruthenia, Russia, where first obtained] * * * ru·the·ni·um rü… …
88tungsten — A metallic element, atomic no. 74, atomic wt. 183.85. SYN: wolfram, wolframium. [Swed. tung, heavy, + sten, stone] t. carbide one of the hardest known materials, used as an abrasive and in the manufacture of dental cutting instruments. * * *… …
89molybdenum — noun Etymology: New Latin, from molybdena, a lead ore, molybdenite, molybdenum, from Latin molybdaena galena, from Greek molybdaina, from molybdos lead Date: 1814 a metallic element that resembles chromium and tungsten in many properties, is used …
90Carbon — (), but as most compounds with multiple single bonded oxygens on a single carbon it is unstable.] Cyanide (CN–), has a similar structure, but behaves much like a halide ion (pseudohalogen). For example it can form the nitride cyanogen molecule… …
