In metallic bonding, the ‘sea of electrons’ that are accumulated from all the metal atoms act as a ‘glue’ between all the metal ions holding them together. What constitutes this ‘sea of electrons’?

Valence electrons

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Innershell electrons

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All the electrons in the atom

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Electrons from only half of all the atoms

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Solution

The correct option is A Valence electrons
In a metallic substance, all the metal atoms are bound together by the force of attraction between valence electrons and the metal ions. The ‘valence electrons’ from every metal atom form a sea of electrons which are detached electrons from many positive ions. The sea of electrons acts as a "glue" which makes the metal stronger.

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