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General electronic configuration of acti...

General electronic configuration of actinoids is `(n-2)f^(1-14)(n-1)d^(0-2)ns^(2)`. Which of the following actinoids have one electron in 6d orbital?

A

U (Atomic number. 92)

B

Np (Atomic number. 93)

C

Pu (Atomic number. 94)

D

Am (Atomic number. 95)

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The correct Answer is:
A, B
General electronic configuration of actinoids is `(n-2)f^(1-14)(n-1)d^(0-2)ns^(2)`. U and Np each have one electron in 6d orbital.
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NCERT EXEMPLAR-D AND F-BLOCK ELEMENTS-D And F-Block Elements
  1. In the form of dichromate, Cr(VI) is a strong oxidising agent in acidi...

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  2. Which of the following actinoids show oxidation states upto +7?

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  3. General electronic configuration of actinoids is (n-2)f^(1-14)(n-1)d^(...

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  4. Which of the following lanthanoids show +2 oxidation state besides the...

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  5. Which of the following ions show higher spin only magnetic moment va...

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  6. Transition elements form binary compounds with halogens. Which of the ...

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  7. Which of the following will not act as oxidising agents?

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  8. Although +3 is the characteristic oxidation state for lanthanoids but ...

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  9. Why does copper not replace hydrogen from acids?

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  10. Why E^(-) values for Mn, Ni and Zn are more negative than expected?

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  11. Why first ionisation enthalpy of Cr is lower than that of Zn?

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  12. Transition elements show high melting points. Why?

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  13. When Cu^(2+) ion is treated with KI, a white precipitate is formed. Ex...

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  14. Out of Cu(2)Cl(2) and CuCl(2), which is more stable and why?

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  15. When a brown compound of manganese (A) is treated with HCl it gives a ...

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  16. Although fluorine is more electronegative than oxygen, but the ability...

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  17. Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...

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  18. Ionisation enthalpies of Ce, Pr and Nd are higher than Th, Pa and U. W...

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  19. Although Zr belongs to 4d and Hf belongs to 5d transition series but i...

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  20. Cerium shows oxidation state of +4 because

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