Question

What are F-centres???

Answer 1

Answer:

An F-center, Farbe center or color center is a type of crystallographic defect in which an anionic vacancy in a crystal lattice is occupied by one or more unpaired electrons. Electrons in such a vacancy tend to absorb light in the visible spectrum such that a material that is usually transparent becomes colored.

Explanation:

hope it will help you

Answer 2

Answer:

Hey cutie xD here is ur answer :

• First the full form of F-centre is Farbe Centre .

• When the ionic sites of a crystal are occupied by unpaired electrons , the ionic sites are called F- centres.

Hope it will helpful to uh shreyu xD keep smiling alwys ☺️❤️