How would you describe the shapes and relative energies of the s,p,d, and f atomic orbitals?

1 Answer
Jul 3, 2017

Shapes are described below, the energies are on average in increasing order in your question, for the same n.

Explanation:

Energies of valence orbitals can be found here (Appendix B.9):

http://media.pearsoncmg.com/bc/bc_0media_chem/adv_chem/pdf/11054_appB_ts.pdf

The first five are 1s, 2s, 2p, 3s, 3p. The remaining energy orderings vary depending on the atom. For "Ca", the 4s is higher in energy than the 3d. For the remaining 1st row transition metals, the 3d is higher in energy than the 4s.

What we can say for sure is, though,

E_(ns) < E_(np) < E_(nd) < E_(nf).


The ns subshell has a spherelike shape, and on average, lower energy than the rest of the subshells on the same quantum level n.

The np subshell has two lobes opposite the origin, and on average has more energy than a ns subshell since it has one more angular node, and thus np electrons are less core-like (and further away from the nucleus).

nd orbitals have five spatial orientations:

WikipediaWikipedia

nf orbitals have seven spatial orientations:

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