Question

In which orbit the 'd' orbital started ?

Answer 1

Answer:

Why do they start from the 4f orbital in a periodic table? ... Because “d” basically means “function with 2 non spherical nodal planes” and that ... Does it have to do with electron orbits?

Answer 2

D orbitals are found in the d sub level of principal energy levels. These are the electron shells surrounding the nucleus of an atom the further from the nucleus we find the electron shell the higher the energy level of the shell .