# What's the difference between atomic orbitals and energy levels? [duplicate]

If I'm drawing a Bohr model of Neon, the middle is the nucleus, the first energy level contains 2 electrons. The second level contains 8 electrons. 8+2= 10, Neon's atomic number. But then what are the atomic orbitals, like s, p, d, and f. Where do they come in? Are they completely different from the energy level?

• Things like s, p, d, and f never come into the Bohr model. – Ivan Neretin Aug 30 '19 at 6:38
• There is always a number before the letters $s, p, d, f$. It tells you which Bohr shell youre in. – Karl Aug 30 '19 at 6:54

• No need to be sorry, these are genuine questions which kept the best minds in physics busy. The picture of 2 electrons in the first shell and 8 in the second is a primitive picture. This picture is not enough to explain the experimental spectrum. [He]$2s^22p^6$ is an advanced version of that primitive model. – M. Farooq Sep 4 '19 at 2:04