Which two properties are explained by the pool-of-shared-electrons model for metals?

Conductivity

Ductility

malleability

Explanation:

There are many properties of metals which can be explained by pool-of-shared electrons or electron sea model.

a) As electrons are considered to be free like in a sea so they are able to conduct electricity easily. Thus metals are conducting in nature.

b) The bonds are random in between metal atoms and can be broken easily and can be formed easily hence as per model the metal are highly ductile and malleable in nature.

answer: option (b) is the correct answer.

explanation:

a covalent bond is formed by sharing of electrons. whereas polarity arises due to difference in electronegativity of two atoms.

therefore, more is the electronegativity of an atom which combines with the titanium, more readily it will induce a partial positive and negative charge.

thus, out of the given options fluorine is most electronegative and has an incomplete octet. therefore, it will readily combine with titanium to share the electrons and complete its octet.