| 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". | |
| 21 Sc Scandium | |
| 22 Ti Titanium | |
| 23 V Vanadium | |
| 24 Cr Chromium | |
| 25 Mn Manganese | |
| 26 Fe Iron | |
| 27 Co Cobalt | |
| 28 Ni Nickel | |
| 29 Cu Copper | |
| 30 Zn Zinc | |
| 39 Y Yttrium | |
| 40 Zr Zirconium | |
| 41 Nb Niobium | |
| 42 Mo Molybdenum | |
| 43 Tc Technetium | |
| 44 Ru Ruthenium | |
| 45 Rh Rhodium | |
| 46 Pd Palladium | |
| 47 Ag Silver | |
| 48 Cd Cadmium | |
| 72 Hf Hafnium | |
| 73 Ta Tantalum | |
| 74 W Tungsten | |
| 75 Re Rhenium | |
| 76 Os Osmium | |
| 77 Ir Iridium | |
| 78 Pt Platinum | |
| 79 Au Gold | |
| 80 Hg Mercury | |
| 104 Rf Rutherfordium | |
| 105 Db Dubnium | |
| 106 Sg Seaborgium | |
| 107 Bh Bohrium | |
| 108 Hs Hassium | |
| 109 Mt Meitnerium | |
| 110 Ds Darmstadtium | |
| 111 Rg Roentgenium | |
| 112 Cn Copernicium | |
| All Shells |