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physical object > natural object > particle > element > column grouped element > transition metal > inner transition metal > rare Earth

rare Earth comparison table

Subject	has ocean residence time	has occurrence	has synthesis mechanism	has ocean oxidation state	is a kind of	has image	has lifetime	has ocean concentration
cerium	100 years	ocean		III	scavenged oceanic element			decreasing with depth
dysprosium	300 years	ocean		III	recycled oceanic element			increasing with depth
erbium	400 years	ocean		III	recycled oceanic element			increasing with depth
europium	500 years	ocean		III	recycled oceanic element			increasing with depth
gadolinium	300 years	ocean		III	recycled oceanic element			increasing with depth
holmium	103 to 105 years	ocean		III	recycled oceanic element			increasing with depth
lanthanum	200 years	ocean		III	recycled oceanic element			increasing with depth
lutetium	4000 years	ocean		III	recycled oceanic element			increasing with depth
neodymium	500 years	ocean		III	recycled oceanic element			increasing with depth
praseodymium	unknown	ocean		III	unclassified oceanic element			unknown
promethium					synthetic element
samarium	200 years	ocean		III	recycled oceanic element			increasing with depth
terbium	103 to 105 years	ocean		III	recycled oceanic element			increasing with depth
thulium	103 to 105 years	ocean		III	recycled oceanic element			increasing with depth
ytterbium	400 years	ocean		III	recycled oceanic element			increasing with depth

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