Patterns of Electron Configurations, Valence Electrons

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					                              Patterns of Electron Configurations, Valence Electrons, and Dot Diagrams

Column IA     Column IIA      Column IIIA          Column IVA            Column VA           Column VIA           Column VIIA          Column VIIIA
H: 1s1        (He: 1s2)                                                                                                              (He: 1s2)
Li: [He]2s1   Be: [He]2s2   B: [He]2s22p1        C: [He]2s22p2        N: [He]2s22p3        O: [He]2s22p4        F: [He]2s22p5        Ne: [He]2s22p6
Na: [Ne]3s1   Mg: [Ne]3s2   Al: [Ne]3s23p1       Si: [Ne]3s23p2       P: [Ne]3s23p3        S: [Ne]3s23p4        Cl: [Ne]3s23p5       Ar: [Ne]3s23p6
K: [Ar]4s1    Ca: [Ar]4s2   Ga: [Ar]4s23d104p1   Ge: [Ar]4s23d104p2   As: [Ar]4s23d104p3   Se: [Ar]4s23d104p4   Br: [Ar]4s23d104p5   Kr: [Ar]4s23d104p6
Rb: [Kr]5s1   Sr: [Kr]5s2   In: [Kr]5s24d105p1   Sn: [Kr]5s24d105p2   Sb: [Kr]5s24d105p3   Te: [Kr]5s24d105p4   I: [Kr]5s24d105p5    Xe: [Kr]5s24d105p6
 1 valence        2 v.e.           3 v.e.               4 v.e.              5 v.e.               6 v.e.                7 v.e.              8 v.e.
  electron

  H                                                                                                                                         He
                 He

   Li                                                                         N                    O                     F                  Ne
                 Be                B                     C

   Na                                                                         P                     S                   Cl                  Ar
                 Mg                Al                    Si

   K                                                                         As                    Se                   Br                  Kr
                 Ca                Ga                    Ge


  Rb                                                                         Sb                    Te                    I                  Xe
                 Sr                In                    Sn