A hard, ductile, metallic element, atomic number 46, resembling silver, belonging to the platinum group and used in precious alloys and as a…
| 单词 | θ216518 |
| 释义 | society > occupation and work > materials > derived or manufactured material > metal > base metal > [noun] > metals of platinum group > specific (4) palladium1803 A hard, ductile, metallic element, atomic number 46, resembling silver, belonging to the platinum group and used in precious alloys and as a… iridium1804 A white metal of the platinum group, resembling polished steel, and fusible with great difficulty, found (usually in conjunction with osmium) in… osmium1804 A dense white metallic element, atomic no. 76, which belongs to the platinum group of transition metals and is used as a constituent of various… rhodium1804 A very hard, silvery-white, metallic chemical element of the transition series, atomic number 45. Symbol Rh (formerly Ro). |
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