The element lutetium.
单词 | θ68794 |
释义 | the world > matter > chemistry > elements and compounds > metals > specific elements > lutetium > [noun] (3) Lu1907 The element lutetium. lutetium1907 A rare metallic element that is the heaviest member of the lanthanide series and forms colourless salts in which it is trivalent. Atomic number 71… cassiopeium1908 An alternative name (now disused) for a rare-earth element now known as lutetium or lutecium. |
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