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The +3 ion of which one of the following...

The `+3` ion of which one of the following has half filled `4f` subshell?

A

La

B

Lu

C

Gd

D

Ac

Text Solution

Verified by Experts

The correct Answer is:
C
`Gd^(3+):[Xe]4f^(7)`
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Only one option correct type
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  3. FeCl(3).6H(2)O is actually:

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  4. Aqueous solution of which of the following ions is green?

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  5. What happens when: CO2 gas is bubbled through green solution of K2MnO...

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  7. German silver is an alloy of copper and:

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  8. When copper is placed in the atmosphere for sufficient time, a green c...

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  9. FeCl(3) dissolves in:

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  10. When AgNO(3)(aq) reacts with excess of iodine, we get:

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  12. The compound that gets oxidised even on exposure to atmosphere is:

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  13. The +3 ion of which one of the following has half filled 4f subshell?

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  19. CuFeS(2)+O(2)("excess")overset(Delta)toX(s)+Y(s) Note: Corresponding...

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  20. Feo Cr(2)O(3)underset(O(2)) overset(Na(2)CO(3))toAoverset(H(2)SO(4))to...

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