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→About Transition Metals
{| class=wikitable border="1" cellpadding="1" cellspacing="0" style="margin:0.5em 1em 0.5em 0; text-align:center; background:{{element color|transition metal}}; border: 1px solid {{element color|table border}}; padding:2px; font-size: 85%;"
|-
|+ Transition metals in the d-block
|- style="background:{{element color|table header}}" |
|-
|<sub>48</sub>[[Cadmium|Cd]]
|-
| [[Period 6 element|Period 6]]
|<sub>57</sub>[[Lanthanum|La]]
|<sub>72</sub>[[Hafnium|Hf]]
| <sub>80</sub>[[Mercury (element)|Hg]]
|-
| [[Period 7 element|Period 7]]
|<sub>89</sub>[[Actinium|Ac]]
|<sub>104</sub>[[Rutherfordium|Rf]]