types:
Aluminium
a silvery ductile metallic element found primarily in bauxite
Americium
a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms
Antimon,
Stibium
a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
Barium
a soft silvery metallic element of the alkali earth group; found in barite
Berkelium
a radioactive transuranic element; discovered by bombarding americium with helium
Beryllium
a light strong brittle grey toxic bivalent metallic element
Bismut,
Wismut
a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
Cadmium
a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores
Calcium,
Kalzium
a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
Californium
a radioactive transuranic element; discovered by bombarding curium with alpha particles
Cer
a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
Caesium,
Zäsium
a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
Chrom
a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
Kobalt
a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
Cuprum,
Kupfer
a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
Curium
a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei
Dysprosium
a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
Einsteinium
a radioactive transuranic element produced by bombarding plutonium with neutrons
Erbium
a trivalent metallic element of the rare earth group; occurs with yttrium
Europium
a bivalent and trivalent metallic element of the rare earth group
Fermium
a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
Francium
a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
Gadolinium
a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
Gallium
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
Hafnium
a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons
Holmium
a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
Indium
a rare soft silvery metallic element; occurs in small quantities in sphalerite
Iridium
a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
Eisen,
Ferrum
a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
Lanthan
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
Blei,
Plumbum
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
Lithium
a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
Lutetium
a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
Magnesium
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)
Mangan
a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
Hydrargyrum,
Quecksilber
a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
Molybdän
a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel
Neodym
a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
Neptunium
a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium
Nickel
a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
Niob
a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
Osmium
a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
Palladium
a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
Polonium
a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor
Kalium
a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
Praseodym
a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
Promethium
a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
Protactinium
a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
Radium
an intensely radioactive metallic element that occurs in minute amounts in uranium ores
Rhenium
a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
Rhodium
a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
Rubidium
a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite
Ruthenium
a rare polyvalent metallic element of the platinum group; it is found associated with platinum
Samarium
a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
Scandium
a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
Natrium
a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
Strontium
a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
Tantal
a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
Technetium
a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
Terbium
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
Thallium
a soft grey malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
Thorium
a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
Thulium
a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
Stannum,
Zinn
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
Titan
a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
Wolfram
a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite
Uran
a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
Vanadium
a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
Ytterbium
a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime
Yttrium
a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
Zink
a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
Zirkonium
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
Alkalimetall
any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)
Aurum,
Gold
a soft yellow malleable ductile (trivalent and univalent) metallic element; occurs mainly as nuggets in rocks and alluvial deposits; does not react with most chemicals but is attacked by chlorine and aqua regia
Platin
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
Argentum,
Silber
a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography