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  • Try this! If n=6, the correct sequence for filling of electrons will be:

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

  • Option 1)

    ns \rightarrow (n-2)f\rightarrow (n-1)d \rightarrow np

  • Option 2)

    ns \rightarrow (n-1)d\rightarrow (n-2)f \rightarrow np

  • Option 3)

    ns \rightarrow (n-2)f\rightarrow np \rightarrow (n-1)d

  • Option 4)

    ns \rightarrow np (n-1)d \rightarrow (n-2)f

 

Answers (1)

As we learnt in 

Aufbau Principle -

In the ground state of the atoms, the orbitals are filled in order of their increasing energies.

- wherein

 

In the ground state of atoms, the orbitals are filled in order of their increasing energies.

Clearly for n=6, we have the order 6s, 4f, 5d, 6p or ns, (n-2)f, (n-1)d, np


Option 1)

ns \rightarrow (n-2)f\rightarrow (n-1)d \rightarrow np

This solution is correct

Option 2)

ns \rightarrow (n-1)d\rightarrow (n-2)f \rightarrow np

This solution is incorrect

Option 3)

ns \rightarrow (n-2)f\rightarrow np \rightarrow (n-1)d

This solution is incorrect

Option 4)

ns \rightarrow np (n-1)d \rightarrow (n-2)f

This solution is incorrect

Posted by

Vakul

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