45 Questions
Which of the following is the main focus of this chapter?
The structure of materials
What is the key to understanding matter?
The interactions between atoms
Which of the following materials is a gas at room temperature?
Argon
Which force holds atoms together to form a solid material?
Electromagnetic force
What is the relative strength of van der Waals interactions?
Weak
Which type of bonding involves the sharing of electrons between two atoms?
Covalent bonding
What is the main force responsible for the interaction between argon atoms?
Van der Waals force
Which type of bonding is explained by a delocalized 'sea' of valence electrons with positively charged nuclear cores dispersed within it?
Metallic bonding
What is the approximate strength of a typical covalent bond?
350 kJ/mol
What type of bonding interaction can be appreciated as electrostatic interactions?
Hydrogen bonding
What dictates the properties of many materials and explains why lipids in cell membranes assemble into the bilayer structure?
Dispersive forces
Which of the following is true about supramolecular structures?
They can organize in larger assemblies
What is the concept of hierarchical structure?
The formation of supramolecular structures
What causes the phenomenon of surface energy?
The imbalance of attractive forces on the surface
What ultimately dictates the properties of matter?
The strength of electrostatic forces
Which of the following best describes the subject of this chapter?
The structure of materials
What is the main focus of the 'Nature of Matter' section?
The attractive and interactive forces between atoms
Which of the following is NOT a class of materials relevant to biomaterials?
Gases
What is the state of argon at room temperature?
Gas
What is the key to understanding matter?
The attractive and interactive forces between atoms
Which type of bonding is the strongest?
Ionic bonding
What is the main force responsible for the interaction between argon atoms?
Van der Waals interactions
What is the approximate strength of a typical covalent bond?
Very strong
What is the approximate strength of a typical hydrogen bond?
20 kJ/mol
Which type of bonding involves the sharing of pairs of electrons between atoms?
Covalent bonding
What is the main force responsible for the interaction between argon atoms?
Van der Waals forces
What is the key concept in appreciating the properties of materials?
Hierarchical structures
Which type of bonding interaction can be appreciated as electrostatic interactions?
Ionic bonding
What is the relative strength of van der Waals interactions?
1 kJ/mol
Which force is responsible for holding atoms together in a solid material?
Electromagnetic force
What is the relative strength of van der Waals interactions?
Weak
What type of bonding involves the interaction of a covalently bound hydrogen with an electronegative atom?
Hydrogen bonding
Which type of bonding involves a sharing of electrons between two atoms?
Covalent bonding
What is the main force responsible for the interaction between argon atoms?
Electromagnetic force
What is the main focus of this chapter?
The forces that hold atoms together
What is the key to understanding matter?
Interactive forces between atoms
Which of the following is an example of a supramolecular structure?
Collagen fibers
What is the approximate size range of molecules?
1 to 100 nm
What is the phenomenon associated with the imbalance of attractive forces at the surface of a material?
Surface energy
What is the main concept illustrated in Figure 1.2.2.6?
Hierarchical structure
What is the primary force that holds atoms together in matter?
Electrostatic forces
What are the dimensions of supramolecular structures?
1 to 1000 nm
What gives surfaces unique reactivities and properties?
Surface energy
What are collagen fibrils formed of?
Aligned bundles of collagen triple helices
What dictates the properties of matter?
Electrostatic forces
Test your knowledge on dispersive forces and their importance in materials properties, including the assembly of lipids in cell membranes.
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