Basic Concept of Basic Structure

What is the simplest repeating unit in a crystal that acts as the basic building block of its structure?

• Crystal System

• Unit Cell

• Crystal Lattice

• Crystal Atoms

Who discovered this concept in 1915 using X-ray diffraction to determine the structures of crystal compositions.

• Auguste Bravais

• Albert Einstein

• William Lawrence Bragg

In 1850, Auguste Bravais showed that crystals could be divided into ? unit cells.

• 14

• 15

• 16

• 13

This structure also has atoms at the corners of the 3D shape, but in addition, there is one more atom in the center of the shape.

• Simple Cubic

• Body-Centered Cubic

• Face-Centered Cubic

• Base-Centered Cubic

 This structure has atoms at the corners and also in the center of each of the faces of the 3D object. So, if it is a cubic crystal structure, there are 14 atoms in total in this unit cell. Also known as the closest-packed because this arrangement is the most efficient way to pack atoms in a crystal.

• Simple Cubic

• Body-Centered Cubic

• Face-Centered Cubic

• Base-Centered Cubic

Also called the end-centered, is a type of crystal structure where atoms are positioned at the corners of a 3D shape and the centers of two opposite faces, usually the top and bottom faces.

• Simple Cubic

• Body-Centered Cubic

• Face-Centered Cubic

• Base-Centered Cubic

Describes the ability of the substance to exist as two or more crystalline phases that have different arrangements of the molecules in the solid state but are otherwise identical in terms of chemical content.

• Polymorphism

• Simple Cubic

• unit cell

• Crystal Lattice

What type of Crystal Cubic Structure is this?

• Simple Cubic

• Body-Centered Cubic

• Face-Centered Cubic

• Base-Centered Cubic

What is the Total atom in this Crystal Structure?

• 2

• 1

• 8

• 6

What is the total atom of this structure?

• 14

• 4

• 12

• 3