Question

expalin the position on first transition series element in periodic table​

Answer 1

Explanation:

The transition elements with nuclear number 21(Sc) to 30(Zn) and having deficient 3d orbitals is known as the First Transition Series. 4d – Transition Series. It comprises of elements with nuclear number 39(Y) to 48 (Cd) and having fragmented 4d orbitals. It is called Second Transition Series.

scandium

The first main transition series begins with either scandium (symbol Sc, atomic number 21) or titanium (symbol Ti, atomic number 22) and ends with zinc (symbol Zn, atomic number 30). The second series includes the elements yttrium (symbol Y, atomic number 39) to cadmium (symbol Cd, atomic number 48).

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