# How do you calculate coordination number?

## How do you calculate coordination number?

Here are the steps for identifying the coordination number of a coordination compound.

1. Identify the central atom in the chemical formula.
2. Locate the atom, molecule, or ion nearest the central metal atom.
3. Add the number of atoms of the nearest atom/molecule/ions.
4. Find the total number of nearest atoms.

### How do you find the coordination number of NaCl and CsCl?

CsCl is a BCC type arrangement, where each Cs⁺ atom is in contact with 8 Cl⁻ ions, hence the coordination number in CsCl is 8. In NaCl, each Na⁺ occupies the octahedral voids, and 6 Na⁺ ions surround one Cl⁻ ion, so coordination number in NaCl is 6.

Why coordination number is Na 6?

NaCl has a fcc lattice in which sodium is at all corners and chloride ions are on the face centre. Here, each ion is attached with 6 other ions. So, the coordination number of each ion is 6.

What is the coordination number in chemistry?

coordination number, also called Ligancy, the number of atoms, ions, or molecules that a central atom or ion holds as its nearest neighbours in a complex or coordination compound or in a crystal.

## What is the coordination number of chlorine in NaCl Crystal?

6
Likewise, six sodium ions immediately surround each chloride ions, making the coordination number of chloride also equal to 6. Because the formula unit of sodium chloride displays a 1:1 ratio between the ions, the coordination numbers must be the same.

### What is coordination number of sodium and chloride in NaCl?

Answer: Sodium chloride (NaCl) or table salt is an ionic compound. For both ions, the coordinating number is 6.

How is the coordination number of CCP 12?

12
-ccp stands for cubic close packed and the coordination number is 12. -Similarly, hcp stands for hexagonal close packed cell and the coordination number is 12….The Coordination number of bcc, fcc, ccp, hcp is:

Type of packing Packing efficiency No. of atoms per unit cell
bcc 68% 2
fcc 74% 4
ccp 74% 6
hcp 74% 6

What is the coordination number of HCP and CCP?

A CCP arrangement has a total of 4 spheres per unit cell and an HCP arrangement has 8 spheres per unit cell. However, both configurations have a coordination number of 12.

## What is the coordination of Na+ in NaCl?

In NaCl crystal, each sodium ion is surrounded by 6 chloride ions and each chloride ion is surrounded by 6 sodium ions. So, the coordination number of NaCl as per definition will be 6:6.

### What is the coordination number of Na+ in NaCl?

Coordination number of Na^+ ion in NaCl is 6 and that of caesium ion in CsCl is 8.