D and F Block

f block elements | lanthanides and actinides

The elements constituting the f block are those in which the 4f and 5f orbitally progressively filled.These elements are the member of group 3.The f block elements are also termed as inner transition elements.It is because literally speaking they constitute transition series within transition series (d-block elements). In addition to incomplete d-subshell, their f-subshell is also …

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