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Which of the following set of element ar...

Which of the following set of element are transitions elements?

A

`Po, At, Rn`

B

`Ga, In, Tl`

C

`Cs, Ba, La`

D

`Ac, Ku, Ha`

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The correct Answer is:
D
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NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-I (H.W)
  1. The group numbers of transition elements

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  2. Best conductor of electricity is

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  3. Which of the following set of element are transitions elements?

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  4. Give general electronic configuration of d-block elements.

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  5. ns^(1) electron configuration is not present in

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  6. Which of the following is the stable electron configuration of Fe^(+3)...

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

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  8. Which of the following ions has same number of unpaired electrons as t...

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  9. Platinum, palladium, iridium, etc., are called noble metals because

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  10. In which of the following elements, the configuration is against Auf-...

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  11. The configuration of chromium atom in ground state is

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  12. The chemical formula of siderite

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  13. The mineral of silver is

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  14. Which of the following group elements exhibits high melting and boilin...

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  15. Which group elements exhibits highest densities

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  16. Which of the following transition metals has the highest melting point...

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  17. Transition element which is volatile

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  18. The metal that has the least melting point among the following is

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  19. The melting points and the boiling points of the transitions elements ...

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  20. The second IP of Cr is high due to

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