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What are Rare Earth Metals? Define Rare Earth Metals
Rare Earth Metals are used as a term in
Periodic Chemistry when classifying the chemical elements. Each element can usually
be classified as a metal or a non-metal based on their general
Physical and Chemical Properties. The rare earths share many common properties. This
makes them difficult to separate or even distinguish from each other. Rare
Earth Metals are any of the metallic elements within Group 3 in the Periodic
Table (see the List of Rare Earth metals). Rare Earth metals are a set of 17
chemical elements in the periodic table, specifically the fifteen lanthanoids plus scandium and yttrium. All lanthanoids are relatively soft
and reactive metals.
What are Rare Earth Metals? Common Properties of Rare Earth Metals
The rare earths metals are silver,
silvery-white or gray metals which have a high luster, but tarnish readily
in air. The rare earth metals have high electrical conductivity.
Nearly 75% of all the elements in the Periodic Table are classified as
metals which are detailed in the
List of Metals.
Common properties of Rare Earth metals
The elements classed as "Rare Earth metals" have the following properties in
common:
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Silver,
silvery-white, or gray metals
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High
Luster
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Tarnish
in air
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Have a
high electrical conductivity
Rare Earth - Chemical Elements in the Periodic Table
The elements contained in
the classification of Rare Earth are as follows:
Elements classified as Rare Earth
The elements classified as "Rare Earth Elements" are located
in Group 3 of the Periodic Table and in the 6th and 7th
periods. The Rare Earth Elements are of the Lanthanide and
Actinide series. Most of the elements in the Actinide series
are synthetic or man-made.
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