TEXT Shell: p-block
       
        .                                                  ..
        .. ..                               B  C  N  O  F  Ne
        .. ..                               Al Si P  S  Cl Ar
        .  .. .. .. .  .. .. .. .. .. .. .. Ga Ge As Se Br Kr
        .. .. .  .. .. .. .. .. .. .. .. .. In Sn Sb Te I  Xe
        .. .. .. .. .. .  .. .. .. .. .. .. Tl Pb Bi Po At Rn
        .. .. .. .. .. .. .. .. .. .. .. .. Nh Fl Mc Lv Ts Og
                                                             
              .. .. .. .. .. .. .. .. .. .. .. .. .. ..      
              .. .. .  .. .. .. .. .. .. .. .. .. .. ..      
       
       The p-block consists elements in Groups 13 to 18 but not Helium. The 
       valence electrons of these elements are in the p-shell. This 
       dumb-bell shaped shell holds at most 6 electrons, and has an 
       azimuthal quantum number of 1. The "p" stands for "principal".
       
   DIR   5 B  Boron
   DIR   6 C  Carbon
   DIR   7 N  Nitrogen
   DIR   8 O  Oxygen
   DIR   9 F  Fluorine
   DIR  10 Ne Neon
   DIR  13 Al Aluminum
   DIR  14 Si Silicon
   DIR  15 P  Phosphorus
   DIR  16 S  Sulfur
   DIR  17 Cl Chlorine
   DIR  18 Ar Argon
   DIR  31 Ga Gallium
   DIR  32 Ge Germanium
   DIR  33 As Arsenic
   DIR  34 Se Selenium
   DIR  35 Br Bromine
   DIR  36 Kr Krypton
   DIR  49 In Indium
   DIR  50 Sn Tin
   DIR  51 Sb Antimony
   DIR  52 Te Tellurium
   DIR  53 I  Iodine
   DIR  54 Xe Xenon
   DIR  81 Tl Thallium
   DIR  82 Pb Lead
   DIR  83 Bi Bismuth
   DIR  84 Po Polonium
   DIR  85 At Astatine
   DIR  86 Rn Radon
   DIR 113 Nh Nihonium
   DIR 114 Fl Flerovium
   DIR 115 Mc Moscovium
   DIR 116 Lv Livermorium
   DIR 117 Ts Tennessine
   DIR 118 Og Oganesson
       
   DIR All Shells