Question

Write the general electronic configuration of inner transition elements.

Hint:

Lanthanides and actinides show variable oxidation states due to the filling of their f-orbitals.

Answer 1

Step 1: Definition of Inner Transition Elements Inner transition elements include lanthanides and actinides. Their general electronic configuration is: \[ (n-2)f^{1-14} (n-1)d^{0-1} ns^2 \] Step 2: Explanation for Lanthanides and Actinides - Lanthanides: \( 4f^{1-14}5d^{0-1}6s^2 \)
- Actinides: \( 5f^{1-14}6d^{0-1}7s^2 \)