Which of the orbitals `1p ,2s,3p,3f` are not position?

Which, of the following orbitals are not possible and why? 1p, 2s, 2p, 3f

Which of the following orbitals are not possible ? 2s, 2p, 3f, 3d.

a. When energy of eleçtron is to be taken to zero? b. Which of the following orbitals are not possible? Give reasons 3 s, 1 p, 4 f, 2 d

Write down the electronic configuration of ""_(14)Si and ""^(25)Mn. Which of the following orbitals are not possible 1p, 2d, 3s, 3f

Which of the following orbitals are possible? 1p, 2s, 2p and 3f.

Which of the following orbitals are possible ? (2s,1p,3f,2p)

Define Aufbau principle. Which of the following orbitals are possible ? 1p, 2s, 2p and 3f.