Question

write an electronic configuration of 3d series of d block elements​

Answer 1

Answer:

O block element have a general electronic configuration of ( n-1 ) d 1 - ns 1-2 . These element. can find stability in half filled orbitals and completely filled a orbitals .An example of this would be the electronic configuration of chromium which has half filled and s orbit in its configuration - 3d54sl

Answer 2

Answer:

Electronic configuration of 3d series of d block elements is $[Ar]3d^{1-10} 4s^{1-2}$

Explanation:

The elements in the 3d–series range from Sc (atomic no.21) to Zn (atomic no.30). These elements belong to the periodic table's fourth period. The last electron in these elements  moves to 3d orbitals, implying that as we advance from Sc to Zn, 3d orbitals are gradually filled with electrons.

Complete electronic configuration of 3d series of d block elements is $[Ar]3d^{1-10} 4s^{1-2}$.

Valence shell electronic configuration is $3d^{1-10} 4s^{1-2}$.