Another View of 2s vs 2p Shielding 1s 2s 1s 2p shielded electron density 2s Penetrates More into 1s Than Does 2p 2s is Therefore Lower in E Than 2p V-12Another View of 2s vs 2p Shielding 1s 2p shielded electron density 2s 1s 2s Penetrates More into 1s Than Does 2p 2s is Therefore Lower in E Than 2p IV-12