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The electronic configuration of bivalent...

The electronic configuration of bivalent europium and trivalent cerium are: (atomic number: Xe=54, Ce=58, Eu=63)

A

`[Xe]4f^(8)`and`[Xe] 4f^(13)`

B

`[Xe] 4f^(7)` and `[Xe] 4f^(14)`

C

`[Xe] 4f^(8)6s^(1) ` and `[Xe] 4f^(13) 6s^(1)`

D

`[Xe] 4f^(8) ` and `[ Xe ] 4f^(14)`

Text Solution

Verified by Experts

(i) `Tb =[Xe] 6x^(2) 4f^(9), Tb^(+4) =[Xe] 4f^(7)`
(ii) `Yb =[Xe ]6x^(2) 4f^(14) , Yb^(+2)= [Xe] 4f^(14)`
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