WorksheetsTOPIC 2: MATERIALS STRUCTURE & INTERATOMIC BONDING
Total questions: 11
Worksheet time: 6mins
Which type of bonding involves the sharing of electrons between atoms?
Ionic
Covalent
Metallic
Van der Waals
In metallic bonding, electrons are described as:
Fixed in place
Shared between two atoms
Delocalized forming an “electron sea”
Transferred completely from one atom to another
Which crystal structure is face-centered cubic (FCC)?
Sodium chloride
Aluminum
Zinc
Diamond
Ionic compounds typically have:
High electrical conductivity in solid state
Low melting points
Strong electrostatic attraction between ions
Delocalized electrons
Which of the following materials has covalent bonding?
Sodium chloride
Diamond
Copper
Aluminum
The smallest repeating unit in a crystal lattice is called:
Grain
Unit cell
Dislocation
Lattice defect
BCC (body-centered cubic) metals are generally:
More ductile than FCC
Denser than FCC
Less ductile than FCC
Non-metallic
A material with high melting point likely has:
Metallic bonding
Ionic bonding
Van der Waals bonding
Delocalized electrons
Which of the following best describes a crystal lattice?
A group of atoms randomly arranged in 3D space
One in which the atoms are located at regular and recurring positions in three dimensions.
The combination of lattice and basis showing specific atom positions
Only the atoms in the crystal without any pattern
What is the main difference between a primitive unit cell and a centered unit cell?
Primitive unit cell has atoms only at corners, centered unit cell has additional atoms at center or faces
Primitive unit cell has atoms at the center, centered unit cell has atoms only at corners
Primitive unit cell is always cubic, centered unit cell is always hexagonal
There is no difference
How many atoms are effectively contained in a Face-Centered Cubic (FCC) unit cell?
1
6
4
8
