Which energy level does not have a p-orbital ?

Dear student,
According to quantum principles,

Each energy level (Denoted by n) contains subshells (Denoted by l).
The value of assumes all the value that lie in the range of 0 to n-1.

l = 0 ---------- s subshell

l = 1 ---------- p subshell

l = 2 ---------- d subshell

l3 ---------- f subshell

For n=1 i.e for the first energy level, the value of l cannot be one according to the above mentioned rule, Hence p subshell is not possible and hence no p orbital can be present in n=1 energy level.

Hope this helps,

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First. As p-orbital starts from second energy level.
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