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From the following in which pair of ...

From the following in which pair of orbitlas have more attraction with nucleus
(i) 4f and 5d (ii) 4d and 5 s (iii) 7s and 5 f ,
(ii) 7p and 5p ( v) 3d and 3f

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(i) 4f has mare attraction with nuclear.
4f and 5d : `(n+1) -=7` but in 4f in is less
(ii) in 5s has more attraction
(iii) in 7s has more attraction
7s : (n+1) = 7,5f : (n+1) =8
(iv) in 5p has more attraction n is less
its subshell is same but value of n in sp is less
(v ) Not possible 3f does not exist.
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