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In the ground state, an element has 13 e...

In the ground state, an element has 13 electrons in its "M - shell". The element is

A

Copper

B

Chromium

C

Nickel

D

iron

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The correct Answer is:
B
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AAKASH SERIES-ATOMIC STRUCTURE-Level - I (EAMCET) (Exercise - V (Electronic configuration , Aufbau principle, Pauli.s Exclusion principle and Hund.s rule ))
  1. The atomic number of an element 'M' is 26. How many electrons are pres...

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  2. Consider the ground state of Cr atom (Z = 24). The numbers of electron...

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  3. Which is the first element to have 4d-electron in its electronic confi...

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  4. In the ground state, an element has 13 electrons in its "M - shell". T...

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  5. (A) : The electronic configuration of Cr is [Ar]3d^(5) 4s^(1) but not ...

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  6. The electrons identified by quantum numbers n and l are I) n = 4, l...

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  7. (A) : Fe^(3+) (g) is more stable than Fe^(2+) (g) (R) : Fe^(3+) (g) ...

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  8. In which of the following Aufbau principle is violated?

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  9. Which of the following electronic configuration is not possible?

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  10. The configuration 1s^(2)2s^(2)2p^(5)3s^(1) shows

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  11. Which of the following has maximum unpaird d-electrons ?

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  12. Consider the ground state of Cr atom (Z = 24). The numbers of electron...

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  13. Mass number of Li, Be and B are 7,9 and 10 respectively. Which of the ...

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  14. The energy required to melt 1g. Ice is 33J. The number of quanta of ra...

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  15. (A) : A spectral line will be seen for 2p(x) to 2p(y) transition. (R...

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  16. When a greater number of electrons from excited hydrogen atoms reach t...

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  17. What electronic transition in Li^(+2) produces the radiation of the sa...

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  18. The wavelength of the spectral line, for the transition n = 2 to n=1 i...

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  19. The ratio of the wave lengths of the first line in the Lyman series of...

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  20. In Bohr series of lines of hydrogen spectrum, the third line from the ...

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