RARE EARTH ELEMENTS (CHEMICAL ELEMENTS)
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BTHEAVY METALS (CHEMICAL ELEMENTS)
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BTTRANSITION METALS/LANTHANUM TO PLATINUM (CHEMICAL ELEMENTS)
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UDC546.65/.66
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Descriptor GERSELTENE ERDEN (CHEMISCHE ELEMENTE)
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Descriptor ENGRARE EARTH ELEMENTS (CHEMICAL ELEMENTS)
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Descriptor FRELANTHANOÏDES (ÉLÉMENTS CHIMIQUES)
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Variant GERLANTHANOIDE (CHEMISCHE ELEMENTE)
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Variant GERLANTHANIDE (CHEMISCHE ELEMENTE)
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Variant ENGLANTHANOIDS (CHEMICAL ELEMENTS)
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Variant ENGLANTHANIDES (CHEMICAL ELEMENTS)
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Variant ENGRARE EARTHS (CHEMICAL ELEMENTS)
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Variant FRETERRES RARES (ÉLÉMENTS CHIMIQUES)
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Variant FRELANTHANIDES (ÉLÉMENTS CHIMIQUES)
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NTCERIUM (CHEMICAL ELEMENTS)
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NTDYSPROSIUM (CHEMICAL ELEMENTS)
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NTERBIUM (CHEMICAL ELEMENTS)
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NTEUROPIUM (CHEMICAL ELEMENTS)
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NTGADOLINIUM (CHEMICAL ELEMENTS)
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NTHOLMIUM (CHEMICAL ELEMENTS)
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NTLANTHANOIDS ISOTOPES
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NTLANTHANOID COMPOUNDS (INORGANIC CHEMISTRY)
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NTLUTETIUM (CHEMICAL ELEMENTS)
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NTNEODYMIUM (CHEMICAL ELEMENTS)
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NTPRASEODYMIUM (CHEMICAL ELEMENTS)
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NTPROMETHIUM (CHEMICAL ELEMENTS)
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NTSAMARIUM (CHEMICAL ELEMENTS)
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NTTERBIUM (CHEMICAL ELEMENTS)
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NTTHULIUM (CHEMICAL ELEMENTS)
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NTYTTERBIUM (CHEMICAL ELEMENTS)