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

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

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

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

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

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

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

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

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

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

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  11. Which one of the following sets of quantum numbers is not possible for...

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  12. According to aufbau principle, the correct order of energy of 3d, 4s a...

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  13. The electrons identified by quantum numbers n and I (i) n = 4,l = 1 ...

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  14. Which of the following sets of quantum numbers is correct for an elect...

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  15. Which one of the following represents an impossible arrangement of ele...

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  16. If n = 6, the correct sequence for filling of electrons will be

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

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  18. The incorrect electronic arrangment is

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  19. Which of the following has non-spherical sub shell of electron ?

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  20. Which of the following is violation of Pauli's exclusion principle ?

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