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Why the elements with at. no. 57 to 71 a...

Why the elements with at. no. 57 to 71 are called inner transition elements ?

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Why the f -block elements are called inner transition elements?

d-block elements are called ul("inner-transition elements.")

What are the characteristics of th transition elements and why are they called transition elements? Which of the d-block elements may not be regarded as the transition elements?

Why are transition elements so named ?

Name the elements which are not really transition elements but are discussed with them. Why is is so?

Which of the following is transition element ?

What are transition elements and inner transition elements. State the position of the inner transition elements state why nobel gases are considered unreactive elements.

Which statement is incorrect with reference to inner transition elements?

incorrect statement for transition element is

What is the difference between the electronic configurations of transition and inner-transition elements

ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(SHORT ANSWER QUESTIONS)
  1. What are actinoids ? Write the name of all the actinoids.

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  2. ""(57)La and ""(71)Lu Lu have no partially filled 4f-subshell, yet the...

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  3. Why the elements with at. no. 57 to 71 are called inner transition ele...

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  4. Comment upon the statement that: (i) The electronic configurations o...

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  5. Which is the last element in the series of the actinoids? Write the el...

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  6. In what way is the electronic configuration of the transition elements...

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  7. What are different oxidation states exhibit by lanthanoids?

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  8. Explain the following terms : (a) Chemistry of all Lanthanoids is so...

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  9. What is the electronic difference between lanthanoids and actinoids? W...

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  10. Name the elements with atomic number 58 and 59 and write their electro...

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  11. What are inner-transition elements? Write their general electronic con...

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  12. Define lanthanoids. Give three differences between lanthanoids and act...

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  13. What happens when : (i) Acidified K2Cr2O7 reacts with Kl. (ii) K2...

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  14. The sums of first and second ionisation energies and those of third an...

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  15. Of the ions Ag^(+),Co^(2+) and Ti^(4+) ,which ones will be coloured in...

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  16. Among ionic species, Sc^(3+), Ce^(4+) and Eu^(2+), which one is a goo...

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  17. of the ions Co^(2+), Sc^(3+) and Cr^(3+) which one will give coloured ...

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  18. A transition element forms alloys with other transition metals easily....

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  19. (i) Give the formula which expresses the general electronic configurat...

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  20. [Ti(H2O)6]^(3+) is coloured while [Sc(H2O)6]^(3+) is colourless . Expl...

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