Question

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

• A. $ns \rightarrow n p \rightarrow( n -1) d \rightarrow( n -2) f$
• B. $ns \rightarrow( n -2) f \rightarrow( n -1) d \rightarrow n p$
• C. $ns \rightarrow( n -1) d \rightarrow( n -2) f \rightarrow n p$
• D. $ns \rightarrow( n -2) f \rightarrow n p \rightarrow( n -1) d$

Answer 1

Answer: (B)

If the principle quantum number $n=6$, the correct sequence of filling of electron will be $ns \rightarrow( n - 2 ) f \rightarrow( n - 1 ) d \rightarrow np$
Here, $n =6$. Hence, the correct sequence of filling of electron will be $6 s \rightarrow 4 f \rightarrow 5 d \rightarrow 6 p$.