Element used in CRTs and LEDs
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YTTRIUMElement used in CRTs and LEDs
iodinenonmetallic element used in medicine and dyes
manganesea hard grey brittle chemical element, used in steels and magnetic alloys
germaniuma metallic element, much used in diodes and transistors as a semiconductor
manganesesMANGANESE, a hard grey brittle chemical element, used in steels and magnetic alloys
germaniumsGERMANIUM, a metallic element, much used in diodes and transistors as a semiconductor
chromiumThe chemical element of atomic number 24, a hard white metal used in stainless steel and other alloys
boronsa trivalent metalloid element found in nature only in combination and used especially in glass and detergents see element table
iodinesa nonmetallic halogen element obtained usually as heavy shining blackish-gray crystals and used especially in medicine, photography, and analysis see element table
neonsa colorless odorless mostly inert gaseous element that is found in minute amounts in air and is used in electric lamps see element table
neoneda colorless odorless mostly inert gaseous element that is found in minute amounts in air and is used in electric lamps see element table
tantaluma gray-white ductile acid-resisting metallic element found combined in rare minerals (as tantalite and columbite) and used especially in electronic components see element table
bismuthbrittle, grayish-white, red-tinged, metallic element used in the manufacture of fusible alloys and in medicine. Symbol: Bi; at. wt.: 208.980; at. no.: 83
titaniumsa silvery-gray light strong metallic element obtained from ilmenite and rutile and used especially in alloys and combined in refractory materials, pigments, and coatings see element table
cesiuma silver-white soft ductile element of the alkali metal group that is the most electropositive element known and that is used especially in photoelectric cells see element table
antimonytrivalent and pentavalent metalloid element that is commonly metallic silvery white, crystalline, and brittle and that is used especially in alloys, semiconductors, and flame-retardant substances see element table
nicklea silver-white hard malleable ductile metallic element capable of a high polish and resistant to corrosion that is used chiefly in alloys and as a catalyst see element table
rubidicsilver-white, metallic, active element resembling potassium, used in photoelectric cells and radio vacuum tubes. Symbol: Rb; at. wt.: 85.47; at. no.: 37; sp. gr.: 1.53 at 20┬░C
rubidiumsilver-white, metallic, active element resembling potassium, used in photoelectric cells and radio vacuum tubes. Symbol: Rb; at. wt.: 85.47; at. no.: 37; sp. gr.: 1.53 at 20┬░C
iridiumprecious metallic element resembling platinum: used in platinum alloys and for the points of gold pens. Symbol: Ir; at. wt.: 192.2; at. no.: 77; sp. gr.: 22.4 at 20┬░C
chlorina halogen element that is isolated as a heavy greenish-yellow diatomic gas of pungent odor and is used especially as a bleach, oxidizing agent, and disinfectant in water purification see element table
simplexbasic geometric element in a Euclidean space, being a line segment in one dimension, a triangle in two dimensions, a tetrahedron in three dimensions, and so on: used in topology and linear programming
yttriumsa metallic element usually included in the rare-earth group that occurs usually with other rare earth elements in minerals and is used especially in phosphors, YAG lasers, and superalloys see element table
lithiuma soft silver-white element of the alkali metal group that is the lightest metal known and that is used especially in alloys and glass, in chemical synthesis, and in storage batteries see element table
platinuma precious grayish-white noncorroding ductile malleable heavy metallic element that fuses with difficulty and is used especially in chemical ware and apparatus, as a catalyst, and in dental and jewelry alloys see element table
strontiuma soft malleable ductile metallic element of the alkaline-earth group occurring only in combination and used especially in color TV tubes, in crimson fireworks, and in the production of some ferrites see element table
xenona heavy colorless and relatively inert gaseous element that occurs in air as about one part in 20 million and is used especially in specialized electric lamps (as flashtubes) and in scientific research see element table
osmiumshard, heavy, metallic element having the greatest density of the known elements and forming octavalent compounds, as OsO4 and OsF8: used chiefly as a catalyst, in alloys, and in the manufacture of electric-light filaments. Symbol:
neodymiumThe chemical element of atomic number 60, a silvery-white metal of the lanthanide series. Neodymium is a component of misch metal and some other alloys, and its compounds are used in coloring glass and ceramics
tantalumsgray, hard, rare, metallic element occurring in columbite and tantalite and usually associated with niobium: used, because of its resistance to corrosion by most acids, for chemical, dental, and surgical instruments and apparatus. Symbol: Ta; at
osmiumhard, heavy, metallic element having the greatest density of the known elements and forming octavalent compounds, as OsO4 and OsF8: used chiefly as a catalyst, in alloys, and in the manufacture of electric-light filaments. Symbol:
galliumrare, steel-gray, trivalent metallic element used in high-temperature thermometers because of its high boiling point (1983┬░C) and low melting point (30┬░C). Symbol: Ga; at. wt.: 69.72; at. no.: 31; sp. gr.: 5.91 at 20┬░C
titaniumdark-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: Ti; at. wt.: 47.90; at
berylliumsteel-gray, bivalent, hard, light, metallic element, the salts of which are sweet: used chiefly in copper alloys for better fatigue endurance, in springs, and in electrical contacts. Symbol: Be; at. wt.: 9.0122; at. no.: 4; sp. gr.
thoriumsgrayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; at. wt.: 23
thoriumgrayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; at. wt.: 23
thoricgrayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; at. wt.: 23
wolframrare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410┬░ C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W;
wolframsrare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410┬░ C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W;
telluriumThe chemical element of atomic number 52, a brittle, shiny, silvery-white semimetal resembling selenium and occurring mainly in small amounts in metallic sulfide ores. It is a semiconductor and is used in some electrical devices and in specialized alloys