Difficult
If the number of radial nodes in an $s$-orbital is $(n - 1)$,and the question asks for the orbital where the number of nodes is $(n - 1)$,which orbital corresponds to the given expression $(n - 1)$?
- A$ns$
- B$(n+1)s$
- C$(n+2)s$
- D$(n-1)s$
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