atomic number 25
— Navneord
– Engelsk
～ a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
atomic number 31
— Navneord
– Engelsk
～ a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores
atomic number 72
— Navneord
– Engelsk
～ a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
atomic number 10
— Navneord
– Engelsk
～ a colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
atomic number 4
— Navneord
– Engelsk
～ a light strong brittle grey toxic bivalent metallic element
atomic number 52
— Navneord
– Engelsk
～ a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
atomic number 50
— Navneord
– Engelsk
～ a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
atomic number 8
— Navneord
– Engelsk
～ a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
atomic number 78
— Navneord
– Engelsk
～ a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
atomic number 21
— Navneord
– Engelsk
～ a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
atomic number 67
— Navneord
– Engelsk
～ a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
atomic number 7
— Navneord
– Engelsk
～ a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
atomic number 93
— Navneord
– Engelsk
～ a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
atomic number 62
— Navneord
– Engelsk
～ a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
atomic number 40
— Navneord
– Engelsk
～ a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
atomic number 42
— Navneord
– Engelsk
～ a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
atomic number 12
— Navneord
– Engelsk
～ a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
atomic number 57
— Navneord
– Engelsk
～ a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
atomic number 109
— Navneord
– Engelsk
～ a radioactive transuranic element