Consider the following pairings of subshell notations with their corresponding principal ( n ) and azimuthal ( l ) quantum numbers: (i) 3p : n=3 , l=2 (ii) 4d : n=4 , l=2 (iii) 6f : n=6 , l=4 (iv) 2s : n=2 , l=0 (v) 5p : n=5 , l=1 How many of the given pairings are incorrect?

Step-by-step solution

For a given subshell, the principal quantum number n is the numerical value, and the azimuthal quantum number l corresponds to the letter: s=0 , p=1 , d=2 , f=3 . Let us evaluate each pairing: (i) 3p : n=3 , l=1 . The given pairing ( l=2 ) is incorrect. (ii) 4d : n=4 , l=2 . The given pairing is correct. (iii) 6f : n=6 , l=3 . The given pairing ( l=4 ) is incorrect. (iv) 2s : n=2 , l=0 . The given pairing is correct. (v) 5p : n=5 , l=1 . The given pairing is correct. There are exactly 2 incorrect pairings, which ar