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The decrease in the size of the lanthano...

The decrease in the size of the lanthanoids with increase in atomic number is known as __________.

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lanthanoid contraction
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CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -EXERCISE (FILL IN THE BLANKS)
  1. Most of the ions of transition elements have and properties.

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  2. The basicity of oxides and hydroxides of lanthanoids with increase in...

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  3. The decrease in the size of the lanthanoids with increase in atomic nu...

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  4. The paramagnetic behaviour of transition metals is due to the presence...

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  5. The decrease in the atomic radii of is more regular as compared to .

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  6. La^(3+) and Lu^(3+) ions exhibit property.

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  7. The atomic radii of and series of transition elements are comparable...

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  8. The colour of [Ti(H(2)O)(6)]^(3+) is violet to the transition of elect...

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  9. is the element of the first transition series that exhibit the highest...

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  10. and are formed by the disproportionation reactionof CrO(4)^(3-) ion i...

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  11. , and among the d - block elements are not considered as transition e...

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  12. The reaction in which the same substance undergoes both oxidation and ...

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  13. The atomic radii of Fe, Co and Ni are .

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  14. [Fe(CN)(6)]^(4-) and [Fe(CN)(6)]^(3-) have different but same .

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  15. The atomic radii of Nb and Ta are comparable due to .

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  16. FeO is a compound and it is deficient.

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  17. The cation present in chromyl chloride is .

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  18. The MnO(4)^(-) ion is coloured though Mn(+7) has a d^(0) configuration...

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  19. In the brown ring test, nitric oxide donates one electron to Fe^(2+) t...

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  20. is used to remove rust marks because it reacts with the ion present i...

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