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Metal Bonding Trends Essay

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METALLIC BONDING TRENDS

Metallic Bonds are the bonds formed between metals because of the overlap of atomic orbitol. The free electrons present in the atoms are going to excited and leaves the atom core. As a result the free electron present stays on the surface of the metal but is no longer in the vicinity of the atom from which it was excited. In other words the electron becomes delocalized as it is no longer in the control of the atom.

But even though the electron is excited there will also be interaction between the ion ( As the atom loses electron) and the free electron. This microscopic scenario repeats all over the metal surface and as a result all the electrons from the metallic surface is delocalized. And these electrons will also have …show more content…

The conductivity increases from Sc to Cr because of the increase of the increase in number of electrons taking part in metallic bonding. But there is a dip in the middle of the group and at the end because of the increase in stability of half filled and completely filled atomic orbitals.

Do all metals have same malleability and ductility?
No all metals don’t have same malleability and ductility. The malleability and ductility depends upon the upon the ease with which the layers of atoms can slide and the crystal structure of metals. For example Gold has the highest malleability , whereas it is difficult to bend potassium or sodium into sheets.

What is the need of an Alloy?
Alloy is a homogeneous mixture of a metal and a metal or a metal and a non metal. By introducing few atoms of another substance in the crystal lattice of the metal we can change the properties of them . For example by adding small amount of carbon to iron we get steel which is more stronger than iron or

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