Use the arrangement of particles in solids and gases to explain why solids are not as easy to compress as gases.

The strong forces of attraction between the particles stop the particles from moving around each other and making the solid flow. The particles are close together so they need to be compressed hard to get them closer.

Explanation:

In solids, strong forces of attraction holds the particles together in a three-dimensional structure. The particles form an orderly arrangements called Lattice.

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.