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  •  If the principal quantum number n= 6, the correct sequence of filling of electrons will be :Option: 1 <img alt="ns\rightarrow np\rightarrow (n-

 If the principal quantum number n= 6, the correct sequence of filling of electrons will be :

Option: 1

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


Option: 2

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


Option: 3

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


Option: 4

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


Answers (1)

best_answer

According to the Aufbau Principle,

the electrons in an atom are filled in the increasing order of their energies. The order of orbital energies is determined by (n+I) rule. If (n+1) value is the same for two orbitals, then the orbital with the lower value of n is filled first.

The sequence of filling electrons in the sixth period.

\begin{array}{l} \ (n s) \rightarrow(n-2) f \rightarrow (n-1) d \rightarrow n p \end{array}

So, increasing order of energy will be

\(6 s \rightarrow 4 f \rightarrow 5 d \rightarrow 6 p\)

Posted by

Shailly goel

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