Question

Which first-row transition metal has the most unpaired electrons?

Answer 1

Answer:

The first row transition metal that has highest unpaired electrons in outer most shell is chromium.

Explanation:

Chromium is the first row transition element with highest number of unpaired electrons.

Each orbital in an atom had specific energy levels.

But in chromium there is no much energy difference between 3d n 4s orbital.

Hence electrons easily move from 4s orbitals to 3d orbitals.

So there remains unpaired electrons.

There are 6 unpaired electrons in outermost orbit of chromium.