## Question

### Solution

Correct option is

6

In rock salt structure, the coordination number of Na+: Cl- is 6: 6

#### SIMILAR QUESTIONS

Q1

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.

Q2

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

Q3

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

Q4

For an ionic crystal of the general formula AX and coordination number 6, the value of radius ratio will be

Q5

In A+ B- ionic compound, radii of A+ and B- ions are 180 pm and 187 pm respectively. The crystal structure of this compound will be

Q6

Sodium metal crystallizes as a body centred cubic lattice with the cell edge 4.29 . What is the radius of sodium atom?

Q7

An fcc lattice has a lattice parameter a = 400 pm. Calculate the molar volume of the lattice including all the empty space.

Q8

The structure of Na2O crystal is

Q9

Structure similar to zinc blende is found in

Q10

What is the coordination number of sodium in Na2O?