CRYSTALS
Crystal Knowledge Quiz
Test your understanding of crystals and their properties with this engaging quiz! Covering various aspects of crystal structures, types, and characteristics, this quiz is perfect for students and enthusiasts alike.
- 25 multiple-choice and checkbox questions
- Explore the fascinating world of crystal chemistry
- Learn while assessing your knowledge
Exists when atoms are held together in an extensive three- dimensional network altogether.
Ionic bonds
Covalent bonds
Metallic bonds
Molecular bonds
It is considered as a good conductor of electricity in directions along the planes of carbons
Graphite
Amorphous solid
Crystalline solid
Coordination number
Refers to the mixing character of one 2s-orbital and three 2p-orbitals to create four hybrid orbitals with similar characteristics. In order for an atom to be sp3 hybridized, it must have an s orbital and three p orbitals.
Lattice
Van der waals
Simple cubic structure
SP3 hybridization
An absence of well-define arrangement and long-range molecular order.
Crystalline solids
Amorphous solids
Lattice
Unit cell
The basic structural (repeating) unit of a crystalline solid.
Lattice
Unit cell
Cell
Crystals
Atoms has the same number of nearest-neighbor or touching atoms
Atomic packing factor
Coordination number
Atoms
Atomic hard sphere model
Three-dimensional array of points coinciding with atom positions or sphere centers.
Van der waals
Unit cell
Lattice
Simple cubic
Top and bottom faces of the unit cell is consist of six atoms that form regular hexagons and surround a single atom in the center
Tetrahedral
Hexagonal
Simple cubic
Rhombohedral
Refers to scattering of X-rays by the units of a crystalline solid
X-ray
Diffraction
Diffraction of Crystals
X-ray Diffraction by crystals
What does Vs means?
Total unit of cell volume
Volume of the atoms in a unit cell
Number of atoms associated with each unit cell
Avogadro's number
It tells us the relative electron densities at various locations in a molecule.
Relative densities
Electron density contour
Density
Theoretical density
Yellow glass contain iron(III) oxide, Fe2O3, or copper(II) oxide, CuO
True
False
Di ko alam sagot
Red glass contains small particles of gold and copper.
True
False
The possibility of a unit cell that is consists of atoms placed only at the corners of a cube do exist
Body centered cubic
Face centered cubic
Simple cubic
Atomic packing factor
Is a crystal structure with atoms located at each of the corners and the center of all cube faces
Body centered cubic
Face centered cubic
Simple cubic
Two important characteristics of ionic crystals
High melting point and simple structure
They re composed of charged species and has high melting point
They are composed of charged species and anions and cations are generally quite different in siz
Has a rigid and long-range order and its atoms, molecules, or ions occupy specific positions.
Amorphous solids
Crystalline solids
Crystal stucture
Closed-packed crystals
In crystalline solids, the arrangement of particles is such that the net attractive intermolecular forces are at their minimum
True
False
Van der Waals and hydrogen bonding are quite weak.
True
False
It has the simplest structure
Covalent crystals
Ionic crystals
Metallic crystals
Molecular crystals
The lattice occupied by molecules which has a van der Waals forces and/or hydrogen bonding.
Metallic crystals
Ionic crystals
Covalent crystals
Molecular crystals
What are the Three types of glass? (choose three)
Soda-lime glass
Quartz glass
Pyrex glass
Pure quartz glass
This type of glass has a composition of 100%Si02
Pyrex glass
Quartz glass
Pure quartz glass
Soda-lime glass
What is the properties of ionic crystals
Hard, brittle, high melting point, poor conductor of heat and electriicity
Hard, high melting point, poor conductor of heat and electricity
Soft, brittle, high melting point, poor conductor of heat and electricity
Soft, brittle, low melting point, poor conductor of heat and electricity
A German physicist recommended that since the wavelength of X-rays is comparable in magnitude to the distances between lattice points in a crystals, then the lattice should be able to diffract X-rays.
George ohm
Max born
Wilhelm Röntgen
Max von Laue
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