Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.

QUESTION

# Why is FeCl3 a Lewis acid?

"FeCl"_3 is a Lewis acid because it can accept an electron pair from a Lewis base.

"Fe" is in Period 4 of .

Its is "[Ar]4s"^2"3d"^6. It has eight .

In order to obtain a "[Kr]" configuration, it can add up to ten more electrons.

In "FeCl"_3, the three "Cl" atoms contribute three more to make a total of 11.

The "Fe" atom can easily accept more electrons from an electron-pair donor.

For example,

"Cl"^"-" + "FeCl"_3 → "FeCl"_4^"-"

Since "FeCl"_3can accept electrons, "FeCl"_3 is a Lewis acid.