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Which trivalent cation is largest in lan...

Which trivalent cation is largest in lanthanoid series ?

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`La^(3+)` has the largest size.
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The size of the trivalent cations in the lanthanoid series decreases steadily as the atomic number increases. What is this known as ?

Which trivalent ion has maximum size in the lanthanoid series i.e., Lanthanum ion (La^(3+)) to Lutetium ion (Lu^(3+)) ? (At. no. of lanthanum = 57 and lutetium = 71)

The most common lanthanoid is :

Which group is largest in gymnosperms ?

The effect of lanthanoid contraction in the lanthanoid series of elements by and large means :

Which of the following is largest in size?

Why are there fourteen elements in the lanthanoid series?

Assign reason for each of the following statement: (i) The largest number of oxidation states are exhibited by the elements in their row transition elements. (ii) The atomic radii decrease in Size with the increasing atomic number in the lanthanoid series

Which is the most common oxidation state of lanthanoids?

ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. State a consequence of lanthanoid contraction shown by transition elem...

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  2. Write outer electronic configuration of lanthanoids.

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  3. Which trivalent cation is largest in lanthanoid series ?

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  4. Write any two uses of pyrophoric alloys.

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  5. Write are non-stoichimetric oxides ? Give one example.

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  6. Give one use each of (i) niobium (ii) tantalum.

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  7. Give two properties in which interstitial compounds differ from its el...

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  8. Why is copper-29 considered a transition metal?

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  9. Why do Zr and Hf exhibit similar properties?

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  10. Assign reasons for the following: What is lanthanoid contraction ? E...

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  11. What is the difference between the electronic configuration of lanthan...

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  12. Which is the most common oxidation state of lanthanoids?

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  13. Why does a transition series contains 10 elements?

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  14. Write the formula of a compound where transition metal is in +7 oxidat...

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  15. Which divalent metal ion has maximum paramagnetic character among the ...

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  16. Write the atomic number of the element in which the filling of 3d-subs...

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  17. In the transition series, with an increase in atomic number, the atomi...

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  18. Name a lanthanoid element which exhibits +4 oxidation state besides +3...

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  19. What is the effect of increasing pH on K2Cr2O7 solution?

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  20. Which is more basic La(OH)(3)zor Lu(OH)3 ? Why?

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