(TXT) Shell: d-block
       
        .                                                  ..
        .. ..                               .  .  .  .  .  ..
        .. ..                               .. .. .  .  .. ..
        .  .. Sc Ti V  Cr Mn Fe Co Ni Cu Zn .. .. .. .. .. ..
        .. .. Y  Zr Nb Mo Tc Ru Rh Pd Ag Cd .. .. .. .. .  ..
        .. .. .. Hf Ta W  Re Os Ir Pt Au Hg .. .. .. .. .. ..
        .. .. .. Rf Db Sg Bh Hs Mt Ds Rg Cn .. .. .. .. .. ..
                                                             
              .. .. .. .. .. .. .. .. .. .. .. .. .. ..      
              .. .. .  .. .. .. .. .. .. .. .. .. .. ..      
       
       The d-block consists of elements in Groups 3 to 12. The valence 
       electrons of these elements are in the d-shell. This shell holds at 
       most 10 electrons, and has an azimuthal quantum number of 2. The "d" 
       stands for "diffuse".
       
 (DIR)  21 Sc Scandium
 (DIR)  22 Ti Titanium
 (DIR)  23 V  Vanadium
 (DIR)  24 Cr Chromium
 (DIR)  25 Mn Manganese
 (DIR)  26 Fe Iron
 (DIR)  27 Co Cobalt
 (DIR)  28 Ni Nickel
 (DIR)  29 Cu Copper
 (DIR)  30 Zn Zinc
 (DIR)  39 Y  Yttrium
 (DIR)  40 Zr Zirconium
 (DIR)  41 Nb Niobium
 (DIR)  42 Mo Molybdenum
 (DIR)  43 Tc Technetium
 (DIR)  44 Ru Ruthenium
 (DIR)  45 Rh Rhodium
 (DIR)  46 Pd Palladium
 (DIR)  47 Ag Silver
 (DIR)  48 Cd Cadmium
 (DIR)  72 Hf Hafnium
 (DIR)  73 Ta Tantalum
 (DIR)  74 W  Tungsten
 (DIR)  75 Re Rhenium
 (DIR)  76 Os Osmium
 (DIR)  77 Ir Iridium
 (DIR)  78 Pt Platinum
 (DIR)  79 Au Gold
 (DIR)  80 Hg Mercury
 (DIR) 104 Rf Rutherfordium
 (DIR) 105 Db Dubnium
 (DIR) 106 Sg Seaborgium
 (DIR) 107 Bh Bohrium
 (DIR) 108 Hs Hassium
 (DIR) 109 Mt Meitnerium
 (DIR) 110 Ds Darmstadtium
 (DIR) 111 Rg Roentgenium
 (DIR) 112 Cn Copernicium
       
 (DIR) All Shells