Podcast
Questions and Answers
What type of crystal is formed by individual molecules held together by intermolecular forces?
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?
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?
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?
Which structure has atoms that interlock, making them unable to move around easily?
Which type of crystal has free-moving electrons that explain their low ionization energy?
Which type of crystal has free-moving electrons that explain their low ionization energy?
Which type of crystal is softer than ionic crystals and has low electrical conductivity?
Which type of crystal is softer than ionic crystals and has low electrical conductivity?
What is the main cause of London dispersion forces?
What is the main cause of London dispersion forces?
How does polarizability change as the size of atoms in a molecule increases?
How does polarizability change as the size of atoms in a molecule increases?
Which intermolecular force has the greatest strength?
Which intermolecular force has the greatest strength?
What is the main contributing factor to the physical properties of substances like melting/boiling point and viscosity?
What is the main contributing factor to the physical properties of substances like melting/boiling point and viscosity?
In a composite material, why do the different materials remain separate and distinct from each other?
In a composite material, why do the different materials remain separate and distinct from each other?
How does the strength of intermolecular forces impact the physical properties of solids?
How does the strength of intermolecular forces impact the physical properties of solids?
What is the term used to describe the situation when bonding electrons are shared unequally in a covalent bond?
What is the term used to describe the situation when bonding electrons are shared unequally in a covalent bond?
In a polar covalent bond, the atom with a stronger pull on the bonding electrons has a ______ charge.
In a polar covalent bond, the atom with a stronger pull on the bonding electrons has a ______ charge.
What term is used for the charge separation in a covalent bond due to unequal sharing of electrons?
What term is used for the charge separation in a covalent bond due to unequal sharing of electrons?
Which of the following BEST describes electronegativity?
Which of the following BEST describes electronegativity?
What type of bond has an electronegativity difference less than 0.5?
What type of bond has an electronegativity difference less than 0.5?
What term is used to describe a molecule with more than 2 atoms that can exhibit polar behavior?
What term is used to describe a molecule with more than 2 atoms that can exhibit polar behavior?
