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bn:00006900n
Noun Concept
SYL
No term available
EN
A soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime WordNet 3.0
Relations
Sources
IS A
EN
metallic element
EN
chemical element
PART OF
apatit
EN
monazite
EN
xenotime
EN
rare earth
EN
period 6
+17 relations
HAS KIND
EN
thulium-169
EN
thulium-170
EN
thulium-171
EN
thulium-172
EN
thulium-173
+30 relations
DESCRIBED BY SOURCE
EN
Armenian Soviet Encyclopedia
EN
Granat Encyclopedic Dictionary
DISCOVERER OR INVENTOR
Per Teodor Cleve
NAMED AFTER
EN
Scandinavia
Thulé

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