Question

the no of unpaired electrons in the scandium atom is

Answer 1

Hello buddy..

Scandium  should have 1 unpaired electron (it would be the first electron to fill the 3-d orbitals)..

Hope it helps you
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Answer 2

The number of unpaired electrons in scandium atom is 1.

Explanation:

• The atomic number of Scandium is 21. Thus it has 21 electrons as the atomic number represents the number of electrons present in the atom.
• As it has 21 electrons, its electronic configuration would be $1s^22s^22p^63s^23p^64s^23d^1$.
• It can be simplifed and written as $[Ar]4s^23d^1$.
• As the 3d orbital is half-filled and contains only one electron, it is inferred that scandium has only one unpaired electron.

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