London Dispersion Forces and Polarizability Quiz

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What type of crystal is formed by individual molecules held together by intermolecular forces?

Metallic crystal

Ionic crystal

Molecular crystal (correct)

Covalent network crystal

Which type of crystal has a very high melting point and is extremely hard?

Ionic crystal

Covalent network crystal (correct)

Molecular crystal

Metallic crystal

In a metallic crystal, what holds the nuclei and electrons of metals together?

Metallic bond (correct)

Ionic bond

Hydrogen bond

Covalent bond

Which structure has atoms that interlock, making them unable to move around easily?

Diamond Signup and view all the answers

Which type of crystal has free-moving electrons that explain their low ionization energy?

Metallic crystal Signup and view all the answers

Which type of crystal is softer than ionic crystals and has low electrical conductivity?

Molecular crystal Signup and view all the answers

What is the main cause of London dispersion forces?

Instantaneous dipoles inducing opposite charges in nearby atoms Signup and view all the answers

How does polarizability change as the size of atoms in a molecule increases?

Polarizability increases Signup and view all the answers

Which intermolecular force has the greatest strength?

Hydrogen bonding Signup and view all the answers

What is the main contributing factor to the physical properties of substances like melting/boiling point and viscosity?

Intermolecular forces Signup and view all the answers

In a composite material, why do the different materials remain separate and distinct from each other?

Materials have different chemical/physical properties Signup and view all the answers

How does the strength of intermolecular forces impact the physical properties of solids?

Intense intermolecular forces influence melting/boiling points Signup and view all the answers

What is the term used to describe the situation when bonding electrons are shared unequally in a covalent bond?

Polar covalent bond Signup and view all the answers

In a polar covalent bond, the atom with a stronger pull on the bonding electrons has a ______ charge.

Negative Signup and view all the answers

What term is used for the charge separation in a covalent bond due to unequal sharing of electrons?

Dipole Signup and view all the answers

Which of the following BEST describes electronegativity?

The ability of an atom to attract shared electrons in a bond Signup and view all the answers

What type of bond has an electronegativity difference less than 0.5?

Nonpolar covalent Signup and view all the answers

What term is used to describe a molecule with more than 2 atoms that can exhibit polar behavior?

Polyatomic molecule Signup and view all the answers