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WorksheetsCrystal Formation
Total questions: 15
Worksheet time: 5mins
A crystal is a solid composed of atoms, ions, or molecules arranged in a pattern that is periodic in HOW MANY DIMENSIONS?
1
2
3
4
It is the smallest part of a crystal that, if repeated regularly by translation in three dimensions, creates the whole crystal.
unit cell
plant cell
cellular body
cell
It is a periodic array of structural units, such as atoms or molecules. It can be constructed by the infinite repetition of these identical structural units in space.
Metallic Crystal
Ideal Crystal
Ionic Crystal
Covalent Crystal
The unit cell of a crystal is defined by
crystal's shape
crystal's growth time
crystal's texture
crystal's lattice points
He showed that crystals could be divided into 14 unit cells.
Auguste Bravais
Ralp Bravais
Gabriel Bravais
Jude Bravais
An infinite array of discrete points with an arrangement and orientation that appears exactly the same, from any of the points the array is viewed from.
Infinite Lattice
Same Lattice
Mendel Lattice
Bravais Lattice
An extra lattice point is centered in each of two opposing faces of the cell.
body-centered
end-centered
face-centered
simple primitive unit cell
An extra lattice point is centered in the exact middle of the cell.
body-centered
end-centered
face-centered
simple primitive unit cell
It contains exactly one lattice point.
primitive unit cell
body-centered unit cell
non-primitive unit cell
face-centered unit cell
It tends to be densely packed. Typically, only one element is present, so all atomic radii are the same. It has the simplest crystal structures.
Metallic Crystals
Ideal Crystals
Ionic Crystals
Covalent Crystals
It is an ordered array of points describing the arrangement of particles that form a crystal.
vertices
point
structure
lattice
An extra lattice point is centered in every face of the cell.
body-centered
end-centered
face-centered
simple primitive unit cell
In 1850, Auguste Bravais showed that crystals could be divided into 14 unit cells, which of the following criteria is NOT included?
The unit cell is the simplest repeating unit in the crystal
Opposite faces of a unit cell are parallel.
´The edge of the unit cell connects equivalent points
Opposite faces of a unit cell are perpendicular.
What kind of non-primitive cell is shown above?
body-centered
face-centered
end-centered
simple primitive unit cell
What kind of non-primitive unit cell is this?
body-centered
face-centered
end-centered
simple primitive unit cell
