what is ketelaar triangle?Explain its significance.
Ketelaar triangles are used to show different compounds in varying degrees of ionic, covalent and metallic bonding.
The bond triangle shows that ionic, metallic and covalent bonds are not just particular bonds of a specific type, they are interconnected and different compounds have varying degrees of different bonding character.
Different compounds can be placed around the triangle. On the right side (from ionic to covalent) should be compounds with varying difference in electronegativity, In the covalent corner compounds with equal electronegativity such as Cl2 (chlorine), in the ionic corner compounds with large electronegativity difference such as NaCl (table salt). The bottom side (from metallic to covalent) is for compounds with varying degree of directionality in the bond. At one extreme is metallic bonds with delocalized bonding and the other are covalent bonds in which the orbitals overlap in a particular direction.
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