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Q: Why separation of lanthanides is diffifult?
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Related questions

What is the difference between lanthanides and actinides?

Wht is the difference between Lanthanides and Actinides?


What are the elements of 4F series called?

The 4f series is referred to as the Lanthanides.


What about the complex formation ability of lanthanides as campared to actinides?

describe the complex formation by lanthanides?


What section of the periodic table is the 4f subshell being filled?

Atoms first occupy the 4f level in the Lanthanide series, beginning with Cerium (Ce).


Do actinides and lanthanides lose electrons when combining?

Actinides and lanthanides lose electrons and form cations.


Ion exchange method for the separation of lanthanides?

although the chemical behaviour of all lanthanide ions are almost identical there are slight quantative differences which vary systematically from la to lu . The hydrated radii of ln ions for instance with increase in the atomic number . It is found that the larger the hydrated radius of the ion the less strongly it is bound to the anionic site of an exchange resin . When a solution containing several lanthanides pass slowly through a column of a cation exchange resin the heavier members come through first . The separation can be enhanced by the use of complexing agents like citricacid or citrates. a cation exchange rein like dowex-1 is normally used for adsorption of lanthanide ions . The column is eluted with EDTA . The lanthanides are eluted in the reverse order of their atomic numbers . Polycarboxylates,lactates,hydroxy butyrate and alpha hydroxy carboxylates also can be used as elements . ion exchange method has been used for separation of lanthanides in kilogram quantities for commercial uses


Why are lanthanides in period six and actinides in period 7?

Lanthanides have 6 electron shells. Actinides have 7 electron shells.


What is the group number for Lanthanides and Actinides?

Rare Earth elements or lanthanides are placed in the period 6 of the periodic table of Mendeleev. Actinoids are placed in the period 7 of the periodic table of Mendeleev.


How many elements are in the lanthanide series?

It depends on the periodic table. Some have 14 lanthanides and some have 15 lanthanides. Refer to the related link for a Wikipedia article on the lanthanides for more information.


What is an older name for lanthanides?

fdgeg


What is the family name of cerium?

Lanthanides


Where are the lanthanides?

They are located in the f-block