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How many 'd' electrons are present in Cr...

How many 'd' electrons are present in `Cr^(2+)` ion?

A

4

B

5

C

6

D

3

Text Solution

Verified by Experts

The correct Answer is:
A
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AAKASH SERIES-ATOMIC STRUCTURE-OBJECTIVE EXERCISE - 2
  1. Which one of the following pairs of atoms/ ions have identical ground ...

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  2. From the given sets of quantum numbers the one that is inconsistent wi...

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  3. How many 'd' electrons are present in Cr^(2+) ion?

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  4. The atomic nụmber of the element with the maximum number of unpaired 2...

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  5. The total number of electrons present in all the 's' orbitals, all the...

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  6. The number of unpaired electrons present in palladium (Z = 46) atom is

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  7. Which atom has as many 's' electrons as P-electrons

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  8. An element has 2 electrons in its K-shell. 8 electrons in L-shell, 13 ...

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  9. Atomic number of the element which has diffe rentiating electron enter...

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  10. The atomic number of an element 'M' is 26. How many electrons are pres...

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

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

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

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

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

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

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  17. Which of the following has maximum unpaired d-electrons?

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  18. Given this set of quantum numbers for a multi electron atom 2, 0, 0, a...

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  19. Which of the following isolated gaseous atoms has highest net electron...

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  20. If the Nitrogen atom had electronic configura - tion 1s^(7), it would ...

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