Match the property given in Column I with the element given in Column II.

Column I

(Property)

Column II

(Element)

A.

Lanthanoid which shows + 4 oxidation state

1.

Pm

B. 

Radioactive lanthanoid

2.

Ce

C. 

Lanthanoid which has 4f7 electronic configurations in +3 oxidation state

3.

Lu

D.

Lanthanoid which has 4f14 electronic configurations in +3 oxidation state

4.

Gd

Codes:

Options:   A    B    C    D  
1. 2 4 1 3
2. 1 2 3 4
3. 2 1 4 3
4. 4 1 3 2
Subtopic:  f-Block Elements- Properties & Uses |
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