| gold | (n) 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, Syn. Au, atomic number 79 |
| hafnium | (n) a grey tetravalent metallic element that resembles zirconium chemically and is found in zirconium minerals; used in filaments for its ready emission of electrons, Syn. atomic number 72, Hf |
| iridium | (n) a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium, Syn. Ir, atomic number 77 |
| lutetium | (n) a trivalent metallic element of the rare earth group; usually occurs in association with yttrium, Syn. lutecium, Lu, atomic number 71 |
| nitrogen | (n) 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, Syn. N, atomic number 7 |
| osmium | (n) a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known, Syn. atomic number 76, Os |
| platinum | (n) 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, Syn. atomic number 78, Pt |
| rhenium | (n) 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, Syn. atomic number 75, Re |
| tantalum | (n) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite, Syn. Ta, atomic number 73 |
| tungsten | (n) 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, Syn. W, wolfram, atomic number 74 |
| ytterbium | (n) a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime, Syn. Yb, atomic number 70 |
| 金 | [jīn, ㄐㄧㄣ, 金] gold Au, transition metal, atomic number 79; metal; money; the Jurchen Jin dynasty (1115-1234); surname Jin or Kim #473 [Add to Longdo] |
| 氮 | [dàn, ㄉㄢˋ, 氮] nitrogen N, atomic number 7 #8,091 [Add to Longdo] |
| 铂 | [bó, ㄅㄛˊ, 铂 / 鉑] platinum Pt, transition metal, atomic number 78 #12,350 [Add to Longdo] |
| 钨 | [wū, ㄨ, 钨 / 鎢] tungsten W (wolfram), transition metal, atomic number 74 #19,712 [Add to Longdo] |
| 铱 | [yī, ㄧ, 铱 / 銥] iridium Ir, transition metal, atomic number 77 #35,795 [Add to Longdo] |
| 锇 | [é, ㄜˊ, 锇 / 鋨] osmium Os, transition metal, atomic number 76 #46,835 [Add to Longdo] |
| 钽 | [tǎn, ㄊㄢˇ, 钽 / 鉭] tantalum Ta, transition metal, atomic number 73 #47,929 [Add to Longdo] |
| 铼 | [lái, ㄌㄞˊ, 铼 / 錸] rhenium Re, transition metal, atomic number 75 #75,288 [Add to Longdo] |
| 铪 | [hā, ㄏㄚ, 铪 / 鉿] hafnium Hf, transition metal, atomic number 72 #104,463 [Add to Longdo] |
