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What is rare earth?
Rare earth is another name (old) for lanthanides or lanthanoids.
What is the difference between rare metals and rare earth metals?
Rare metals are simply metals that aren't common. They don't necessarily have any chemical properties in common. (Many of them do, because they tend to cluster in certain regions of the periodic table - around iridium and rhodium.)Rare earth metals are, specifically, the lanthanides (scandium and yttrium are also sometimes included, because they tend to be found in the same mineral deposits where the lanthanides are found). They tend to be very similar chemically, to the point where it's actually difficult to separate them by their chemical properties.The rare earths are not really all that "rare": with the exception of promethium (which has no stable isotopes), they're considerably more common than the truly rare metals. Gadolinium is, for example, about a thousand times more common than gold.
Why are lanthanides and actinides place at the bottom?
Because they're rare earth elements.
Elements with atomic numbers of 58 through 71 are known as the?
The elements beginning with Lanthanum (atomic number 57) and ending with Lutetium (atomic number 71) are called Lanthanides. They are also known as rare earth elements.
3 characteristics for rare earth metals?
Rare earth metals tend to be soft and goldish in color.
What a another name for a rare earth element?
They are called lanthanides (as well as scandium and yttrium).
What is rare earth?
Rare earth is another name (old) for lanthanides or lanthanoids.
What is uraninite used for?
Uraninite is the of the primary ore of uranium. Rare earth metals (lanthanides: elements 57-71) are sometimes contained in uraninite.
What has the author Simon Cotton written?
Simon Cotton has written: 'Lanthanides and actinides' -- subject(s): Rare earth metals, Actinide elements 'Chemistry of precious metals' -- subject(s): Precious metals
What are Elements in the first row of the rare earth elements of the periodic table!?
Elements in the first row of the rare earth elements of the Periodic Table are called LANTHANIDES.
What are the rare earth ores?
Lanthanides, Yttrium, and Scandium
What is the name for the rare earth elements that begin with Lanthanum?
lanthanides
The lanthanides and actinides are known as the?
Inner transition metals (inner transition elements)F-block
Why were they named rare earth metals?
They were rare metals that are found in the earth.
What is the difference between rare metals and rare earth metals?
Rare metals are simply metals that aren't common. They don't necessarily have any chemical properties in common. (Many of them do, because they tend to cluster in certain regions of the periodic table - around iridium and rhodium.)Rare earth metals are, specifically, the lanthanides (scandium and yttrium are also sometimes included, because they tend to be found in the same mineral deposits where the lanthanides are found). They tend to be very similar chemically, to the point where it's actually difficult to separate them by their chemical properties.The rare earths are not really all that "rare": with the exception of promethium (which has no stable isotopes), they're considerably more common than the truly rare metals. Gadolinium is, for example, about a thousand times more common than gold.
Why are lanthanides and actinides place at the bottom?
Because they're rare earth elements.
Elements with atomic numbers of 58 through 71 are known as the?
The elements beginning with Lanthanum (atomic number 57) and ending with Lutetium (atomic number 71) are called Lanthanides. They are also known as rare earth elements.
