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Europium forms stable Eu^(2+) ions becau...

Europium forms stable `Eu^(2+)` ions because

A

Europium is a lanthanide

B

`+2` is the common oxidation state of lanthanides.

C

`Eu^(2+)` has `f^(7)` valence electronic configuration

D

All of the above reasons.

Text Solution

Verified by Experts

The correct Answer is:
C
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RESONANCE-PERIODIC TABLE & PERIODICITY-Advanced Level Problems
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  8. The noble gas was first time discovered by

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  9. The correct order of increasing first ionization energy is

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  10. The group that has the species correctly listed in the order of decrea...

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  11. The number of valence electrons in an atom with the configuration 1s^(...

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  12. The compound in which Mn has oxidation state of +3 is

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  13. The most abundant element found in the earth's crust is:-

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  14. Einstenium has 11 electrons in the 4f subshell. The number of unpaired...

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  15. Lanthanoid contraction is caused due to:

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  16. The outermost electronic configuration of the most electronegative ele...

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  17. The first ionisation potential of Na,Mg,Al and Si are in the order

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  18. The first four ionization energies of an element are 191, 578, 872, an...

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