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chemical element groups
lanthanide series elements
This category is also used for
lanthanoid elements
Subtopics
(none)
See also
cerium
dysprosium
erbium
europium
gadolinium
holmium
lanthanum
lutetium
neodymium
praseodymium
promethium
rare earth elements
samarium
terbium
thulium
ytterbium
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