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What is coordination number Ncert?

What is coordination number Ncert?

Coordination number is the number of atoms, molecules or ions bonded to a central metal atom. The ions, molecules or atom surrounding the central metal atom is called ligands. This is in the case of complexes.

What is coordination number in organic chemistry?

Coordination number of an atom in an organic molecule is the number of atoms directly bonded to it. For example, in 1 the coordination number of the carbon atom is four and that of the oxygen atom is two.

What is the coordination number 4?

The two most common allotropes of carbon have different coordination numbers. In diamond, each carbon atom is at the centre of a regular tetrahedron formed by four other carbon atoms, the coordination number is four, as for methane.

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What is the coordination number of CCP?

-ccp stands for cubic close packed and the coordination number is 12.

What is coordination number of HCP?

The hexagonal closest packed (hcp) has a coordination number of 12 and contains 6 atoms per unit cell.

What does coordination number mean?

(i) Coordination number is the number of nearest neighbors with which a given atom is in contact. In an ionic crystal, the coordination number of an ion refers to the number of oppositely charged ions that surround that ion.

What is the coordination number of atoms in CCP and BCC?

The co-ordination number of atoms in BCC lattice is 8, in HCP lattice 12, in CCP lattice 12 and in simple lattice it is 6.

Why is coordination number of Mg 6?

Mg has ‘d’ subshells in n = 3 level. Hence it has more valence orbital. Therefore it can have a coordination number 6.

What is the geometry of coordination number 7?

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Table of coordination geometries

Coordination number Geometry Examples in crystals (infinite solids)
5 square pyramidal
6 octahedral Na and Cl in NaCl
6 trigonal prismatic As in NiAs, Mo in MoS2
7 pentagonal bipyramidal Pa in PaCl5

Why is the coordination number of HCP 12?

HCP means hexagonal close packed. The repeating unit in a crystal structure is called a unit cell. Complete step by step answer: – Therefore there are 12 atoms in touch or coordination with each atom in a Hexagonal close packed structure, then the coordination number of HCP is 12.

What is the coordination number for 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 number of HCP and CCP?