Understanding Nodal Surfaces: How Many are There in an Orbital?

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The discussion centers on the determination of nodal surfaces in atomic orbitals. There is confusion regarding whether the number of nodal surfaces is equal to the principal quantum number (n) or n-1. The consensus in the conversation clarifies that the correct approach is to use n-1 to find the number of nodal surfaces for an orbital. This means that for any given principal quantum number n, the number of nodal surfaces is one less than n, resolving the conflicting arguments presented.
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Hey just need a quick clarification here.

I am reading conflicting arguments. One argument states that to find the nodal surfaces of an orbital you take the result of n-1 the other argument states that the number of nodal surfaces of an orbital is equal to n.

Can someone please clear this up for me? Thanks.
 
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It's n-1, I don't know where they're getting just n.
 

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