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Most of the ratio active elements are in...

Most of the ratio active elements are in

A

Lanthanides

B

Actinides

C

Representative elements

D

Second transitional series

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The correct Answer is:
B
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NARAYNA-PERIODIC TABLE -All Questions
  1. The 4f level is successively filled up in

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  2. Lanthanides are group of elements in which the differentiating electro...

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  3. Most of the ratio active elements are in

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  4. The elements with atomic numbers 2, 10, 18 36, 54, and 86 are collecti...

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  5. Which of the following represents the electronic configuration of d-bl...

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  6. The general configuration (n-1)d^(3)ns^(2) indicates that particular e...

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  7. If the valency shell electronic structure for an element is ns^(2) np^...

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  8. Variable valency is shown by

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  9. Which one of the following belongs to representative group of elements...

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  10. The element californium belongs to a familt of

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  11. Transitio metals are often paramagnetic due to

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  12. A member of Lanthanide

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  13. Which is wrong about transition metals?

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  14. The electron configuration of the starting and ending elements of four...

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  15. In which of the following period a maximum number of 32 elements are p...

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  16. The element having 18 electrons in its outer most shell is:

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  17. The maximum number of valency electrons possible for atom in the secon...

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  18. The atomic number of an element 'X' is 34. Then it is present in peri...

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  19. The position of element with Z=24 in the periodic table is

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  20. Transition metals exhibit variable oxidation states. It is because of

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