Question

Why dotés 2d and 2f do not existe?

Answer 1

Answer:

These orbitals are the solutions of schrodinger equations. In quantum mechanics the basis functions is used to express/represent electronic state

Answer 2

Answer:

The short answer to this question is that the principal quantum number n must be larger than the angular momentum quantum number l. Thus, for n = 1, only l = 0 gives a valid wave function, for n = 2, you can only have l = 0, 1 (s and p), and so on. This condition follows from the requirement that the wave function needs to be square integrable.

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