Figure 7.4 shows the radial probability distribution functions for the 2s orbitals and 2p orbitals.

(a) Which orbital, 2s or 2p, has more electron density close to the nucleus?

(b) How would you modify Slater’s rules to adjust for the difference in electronic penetration of the nucleus for the 2s and 2p orbitals?

Transcribed Image Text:

1s electrons are much closer to the nucleus - they screen the valence electrons 1s 2s electrons experience greater nuclear attraction than the 2p electrons 25 2p 5 Distance from nucleus (Å) 1 2 3 4 6. 7 8. 10 Radial electron density