Electronic Configurations TABLE 1-1 Electronlc Conflguratlons of the Elements of the FIrst and Second Rows Element Configuration Valence Electrons H 1s1 1 He 1s2 2 Li 1522s1 Be 1s22x2 2 B 1s2222p 3 C 1s22s22p2p 4 N 1s22522p12p2p 5 0 1s22s22p22p2p 6 F 1s22s22p22p2p 7 Ne 1s22s22p22p2p月 8 => Chapter 1Chapter 1 8 Electronic Configurations =>