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• heavy metal go
  a metal of relatively high density (specific gravity greater than about 5) or of high relative atomic weight (especially one that is poisonous like mercury or lead)
  
• base metal go
  a metal that is common and not considered precious
  
• noble metal go
  any metal that is resistant to corrosion or oxidation
  
• aluminum, aluminium, Al, atomic number 13 go
  a silvery ductile metallic element found primarily in bauxite
  
• americium, Am, atomic number 95 go
  a radioactive transuranic metallic element
  
• antimony, Sb, atomic number 51 go
  a metallic element having four allotropic forms
  
• barium, Ba, atomic number 56 go
  a soft silvery metallic element of the alkali earth group
  
• berkelium, Bk, atomic number 97 go
  a radioactive transuranic element
  
• beryllium, Be, glucinium, atomic number 4 go
  a light strong brittle grey toxic bivalent metallic element
  
• bismuth, Bi, atomic number 83 go
  a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically)
  
• cadmium, Cd, atomic number 48 go
  a soft bluish-white ductile malleable toxic bivalent metallic element
  
• calcium, Ca, atomic number 20 go
  a white metallic element that burns with a brilliant light
  
• californium, Cf, atomic number 98 go
  a radioactive transuranic element
  
• cerium, Ce, atomic number 58 go
  a ductile grey metallic element of the lanthanide series
  
• cesium, caesium, Cs, atomic number 55 go
  a soft silver-white ductile metallic element (liquid at normal temperatures)
  
• chromium, Cr, atomic number 24 go
  a hard brittle multivalent metallic element
  
• cobalt, Co, atomic number 27 go
  a hard ferromagnetic silver-white bivalent or trivalent metallic element
  
• copper, Cu, atomic number 29 go
  a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element
  
• curium, Cm, atomic number 96 go
  a radioactive transuranic metallic element
  
• dysprosium, Dy, atomic number 66 go
  a trivalent metallic element of the rare earth group
  
• E, einsteinium, Es, atomic number 99 go
  a radioactive transuranic element produced by bombarding plutonium with neutrons
  
• erbium, Er, atomic number 68 go
  a trivalent metallic element of the rare earth group
  
• europium, Eu, atomic number 63 go
  a bivalent and trivalent metallic element of the rare earth group
  
• fermium, Fm, atomic number 100 go
  a radioactive transuranic metallic element produced by bombarding plutonium with neutrons
  
• francium, Fr, atomic number 87 go
  a radioactive element of the alkali-metal group discovered as a disintegration product of actinium
  
• gadolinium, Gd, atomic number 64 go
  a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
  
• gallium, Ga, atomic number 31 go
  a rare silvery (usually trivalent) metallic element
  
• hafnium, Hf, atomic number 72 go
  a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals
  
• holmium, Ho, atomic number 67 go
  a trivalent metallic element of the rare earth group
  
• indium, In, atomic number 49 go
  a rare soft silvery metallic element
  
• iridium, Ir, atomic number 77 go
  a heavy brittle metallic element of the platinum group
  
• iron, Fe, atomic number 26 go
  a heavy ductile magnetic metallic element
  
• lanthanum, La, atomic number 57 go
  a white soft metallic element that tarnishes readily
  
• lead, Pb, atomic number 82 go
  a soft heavy toxic malleable metallic element
  
• lithium, Li, atomic number 3 go
  a soft silver-white univalent element of the alkali metal group
  
• lutetium, lutecium, Lu, atomic number 71 go
  a trivalent metallic element of the rare earth group
  
• magnesium, Mg, atomic number 12 go
  a light silver-white ductile bivalent metallic element
  
• manganese, Mn, atomic number 25 go
  a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic
  
• mercury, quicksilver, hydrargyrum, Hg, atomic number 80 go
  a heavy silvery toxic univalent and bivalent metallic element
  
• molybdenum, Mo, atomic number 42 go
  a polyvalent metallic element that resembles chromium and tungsten in its properties
  
• neodymium, Nd, atomic number 60 go
  a yellow trivalent metallic element of the rare earth group
  
• neptunium, Np, atomic number 93 go
  a radioactive transuranic metallic element
  
• nickel, Ni, atomic number 28 go
  a hard malleable ductile silvery metallic element that is resistant to corrosion
  
• niobium, Nb, atomic number 41 go
  a soft grey ductile metallic element used in alloys
  
• osmium, Os, atomic number 76 go
  a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals
  
• palladium, Pd, atomic number 46 go
  a silver-white metallic element of the platinum group that resembles platinum
  
• Po, polonium, atomic number 84 go
  a radioactive metallic element that is similar to tellurium and bismuth
  
• K, potassium, atomic number 19 go
  a light soft silver-white metallic element of the alkali metal group
  
• praseodymium, Pr, atomic number 59 go
  a soft yellowish-white trivalent metallic element of the rare earth group
  
• promethium, Pm, atomic number 61 go
  a soft silvery metallic element of the rare earth group having no stable isotope
  
• Pa, protactinium, protoactinium, atomic number 91 go
  a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead
  
• Ra, radium, atomic number 88 go
  an intensely radioactive metallic element that occurs in minute amounts in uranium ores
  
• Re, rhenium, atomic number 75 go
  a rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys
  
• rhodium, Rh, atomic number 45 go
  a white hard metallic element that is one of the platinum group and is found in platinum ores
  
• rubidium, Rb, atomic number 37 go
  a soft silvery metallic element of the alkali metal group
  
• ruthenium, Ru, atomic number 44 go
  a rare polyvalent metallic element of the platinum group
  
• samarium, Sm, atomic number 62 go
  a grey lustrous metallic element of the rare earth group
  
• scandium, Sc, atomic number 21 go
  a white trivalent metallic element
  
• sodium, Na, atomic number 11 go
  a silvery soft waxy metallic element of the alkali metal group
  
• strontium, Sr, atomic number 38 go
  a soft silver-white or yellowish metallic element of the alkali metal group
  
• tantalum, Ta, atomic number 73 go
  a hard grey lustrous metallic element that is highly resistant to corrosion
  
• technetium, Tc, atomic number 43 go
  a crystalline metallic element not found in nature
  
• Tb, terbium, atomic number 65 go
  a metallic element of the rare earth group
  
• thallium, Tl, atomic number 81 go
  a soft grey malleable metallic element that resembles tin but discolors on exposure to air
  
• thorium, Th, atomic number 90 go
  a soft silvery-white tetravalent radioactive metallic element
  
• thulium, Tm, atomic number 69 go
  a soft silvery metallic element of the rare earth group
  
• tin, Sn, atomic number 50 go
  a silvery malleable metallic element that resists corrosion
  
• titanium, Ti, atomic number 22 go
  a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts)
  
• W, tungsten, wolfram, atomic number 74 go
  a heavy grey-white metallic element
  
• U, uranium, atomic number 92 go
  a heavy toxic silvery-white radioactive metallic element
  
• V, vanadium, atomic number 23 go
  a soft silvery white toxic metallic element used in steel alloys
  
• Yb, ytterbium, atomic number 70 go
  a soft silvery metallic element
  
• Y, yttrium, atomic number 39 go
  a silvery metallic element that is common in rare-earth minerals
  
• zinc, Zn, atomic number 30 go
  a bluish-white lustrous metallic element
  
• zirconium, Zr, atomic number 40 go
  a lustrous grey strong metallic element resembling titanium
  
• alkali metal, alkaline metal go
  any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)
  
• alkaline earth, alkaline-earth metal go
  any of the bivalent metals of group II of the periodic table (calcium or strontium or barium or magnesium or beryllium)