Question

If the value of ionic radius ratio  is 0.52 in an ionic compound, the geometrical arrangement of ions in crystal is

Solution

Correct option is

Octahedral

 

The value of ionic radius ratio is 0.52 which is between

0.414 – 0.732, then the geometrical arrangement of ions in crystal is octahedral. 

SIMILAR QUESTIONS

Q1

In a face centred cubic cell, an atom at the face contributes to the unit cell

Q2

A fcc unit cell of aluminum contains the equivalent of how many atoms?

Q3

In octahedral holes (voids)

Q4

The number of octahedral sites per sphere in a fcc structure is

Q5

The interionic distance for cesium chloride crystal will be

Q6

For cubic coordination, the value of radius ratio is

Q7

The ratio of cationic radius of anionic radius in an ionic crystal is greater than 0.732. its coordination number is

Q8

The vacant space in the bcc unit cell is

Q9

Calculate the ionic radius of a Cs+ ion, assuming that the cell edge length for CsCl is 0.4123 nm and that the ionic radius of a Cl- ion 0.181 nm.

Q10

A metal has bcc structure and the edge length of its unit cell is 3.04 . The volume of the unit cell in cm3 will be