What are examples of solids that vibrate while maintaining constant shape and volume (3 ex) ?

Solids have a definite shape and volume, they are packed tightly together, like a can of sardines, but the particles in them are still moving! The above are examples of solids.

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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.