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D-block elements: the transition metals in the middle of the periodic table D-electron: responsible for bonding and reactivity Electron configuration: arrangement of electrons in the orbitals of metals
The d-block elements are found in the middle of the period table. The d-block elements are called transition metals and have valence electrons in d orbital's. The f-block elements,found in the two rows at the bottom of the periodic table, are called inner transition metals and have valence electrons in the f-orbital's. d block f block orbital This segment let's go ahead and talk about d and f-Block elements.