What is metallic bonding?
The chemical bonding that takes place from the attraction of metal atoms and the surrounding sea of electrons.
A.The chemical bonding that takes place from the attraction of metal atoms and the other elements.
B.The chemical bonding that takes place between metal atoms when they share electrons.
C.The chemical bonding electrons.
D.The chemical bonding that takes place between metal atoms when they transfer electrons.

Answer
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Hint: A metallic bond is a bond that holds together many metal atoms together in a metallic structure.
The electrons from the outermost shell of the atom (valence electrons) get detached from the atom and start flowing in the sea of electrons together with the other electrons from the other metal atoms in the structure.

Complete step by step answer:
As stated above, metals consist of sea electrons. These electrons are the valence electrons of all the metal atoms that are loosely bound to the metal atom and thus can be easily removed from the valence shell of the atom.
These electrons move in a sea of free electrons and do not get attached to any specific atom.
The attraction between this sea of electrons and the metal atoms are known as metallic bonding.
Hence, the correct answer is B.
This bonding is responsible for many of the properties of the metals.


Note:
Some of the properties of metal due to metallic bonding are:
Metals are good conductors of electricity. This is because when an electric current is applied across the ends of metal, this sea of electrons starts flowing in a specific uniform direction, and hence the current can flow through metal.
The hardness of the metal is because of the metallic bonding.
Metals can conduct heat and can expand or contract on the application of heat.
Free electrons can absorb the light falling on them and thus making the metal surface opaque looking. The electrons present at the surface of metals bounce the light falling on them with the same frequency thus giving the metal surface a lustrous appearance.