Question

When an electron occupies the empty space of negatively charged ions then the defect in Crystal is? Options are(1) schottky defect. (2) frekel defect (3) F-centre​

Answer 1

Answer:

Explanation:

this effect is known as schottky effect

hence answer will be

A.

Have a great day and thnx for asking

Answer 2

When an electron occupies the empty space of negatively charged ions then the defect in Crystal is F-centre

• F centre is also known as Farbe centre or color centre because the electrons that occupy the empty space of negatively charged ions absorb light due to which the color of the material changes.
• The vacancy caused by negatively charged ions is known as anionic vacancy.
• Example of F centre defect is the one that occurs in NaCl due to which NaCl gets a yellow tint.