The d-block of the periodic table of the elements consists of those periodic table groups that contain elements in which, in the atomic ground state, the highest-energy electron is in a d-orbital. The d-block elements are often also known as transition metals.

See also

• Periodic table block
  • s-block
  • p-block
  • f-block
  • g-block
• Electron configuration

عناصر مستوى فرعي d | Elementos del bloque d | Elements del bloc d | Elementos del bloque d | Éléments du bloc d | D-blok | D-blokk | D-blok | Dブロック元素 | D-blokk | Blok d | D-blocket | บล็อก-d | Khối d | D区元素