Question

Which orbital would the electron of a ground state hydrogen atom occupy? 1s 1p 2p none of the above 0s?

Answer 1

From the periodic table, we can see that:
At ground state, the hydrogen atom has one electron
Based on the electronic configuration, at ground state this electron should be occupying the orbital (1s)

Since (1s) is not one of the choices, therefore, the answer is "none of the above"