Question

the box orbital diagram corresponding to d^6 is 1
the box orbital diagram corresponding to d^10 is 2

Explanation:

Step1: Recall Hund's rule for d - orbitals

d - orbitals have 5 sub - orbitals. According to Hund's rule, electrons first fill each sub - orbital singly with parallel spins before pairing up.

Step2: Determine the $d^6$ orbital diagram

For $d^6$, first, 5 electrons fill the 5 d - sub - orbitals singly with parallel spins, and the 6th electron pairs up with one of them. So, there are 4 unpaired electrons and 1 paired electron.

Step3: Determine the $d^{10}$ orbital diagram

For $d^{10}$, all 5 d - sub - orbitals are filled with 2 electrons each (paired).

Answer:

1. ee
2. yy