Long Answer Type
Short Answer TypeWhy does a transition series contain only ten elements?
The transition elements are also known as the d-block elements, because while the outermost level contains at most two electrons, their next to outermost main levels have incompletely filled d sub-orbitals, which are filled-up progressively on going across the periodic table from 8to 18 electrons.
General electronic configuration of d - block element is (n – 1) d1–10 ns1-2.
Why is electronic configuration 1s22s22p63s23p64s23d4 not correct for ground state of Cr (24)?
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