Question

What is an electron sea model?

Answer 1

Hint: Try to recall that the electron sea model is a representative model of metallic bonding in which metal ions or kernel is a fixed point surrounded by a sea of valence electrons. Now, by using this you can easily answer the given question.

Complete step by step solution:
It is known to you that electron sea model pictures of a metal lattice or crystal consisting of positive kernel or metal ions (left after the removal of valence electrons) arranged in a definite pattern in a sea of mobile electrons.
This happens because electrons are not held tightly by the metallic atoms as metals have low electronegativity.
The valence electrons roam around the whole metal lattice and they float free as though floating through a sea of electrons. This is why this model is known as the electron sea model.
Each metal ion or kernel is simultaneously attracted by a number of electrons and each mobile electron is attracted by a number of metal ions. This simultaneous force of attraction between the mobile electrons and the positive kernels is called the metallic bond.

Note: It should be remembered that the model of the sea of electrons explains the physical properties of metals like thermal conductivity, electric conductivity, luster and malleability.
Also, you should remember that since these electrons are free to move inside the metal lattice, so they are also known as conducting electrons and thus metals are also known as conductors.