Question

The presence of five unpaired electrons in a d - orbital can be explained by

Answer 1

Answer:

Step 1: Find the electron configuration. ...

Step 2: Draw the valence orbitals. ...

Step 3: Look for unpaired electrons. ...

Step 4: Determine whether the substance is paramagnetic or diamagnetic. ...

Step 1: Find the electron configuration. ...

Step 2: Draw the valence orbitals.

Step 3: Look for unpaired electrons.

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Answer 2

Explaination for observed phenomenon is -

D block can accommodate ten electrons. This is because d block has five types of orbitals, thus two electrons in one orbital.

Now, unpaired electron filling in d block occurs according to Hund's principle.

According to Hund's rule - Every

orbital in a sublevel is singly occupied before any orbital is doubly occupied. All the unpaired electrons must have same spin