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MaxineA unit cell represents the smallest repeating structure of a crystal lattice in three-dimensional space, while a formula unit represents the smallest unit of a compound that still retains its chemical identity. Both concepts are crucial in understanding the arrangement and composition of crystalline materials.
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How many formula units are in the unit cell shown?
The number of formula units in a unit cell depends on the type of unit cell and the arrangement of atoms within the cell. For simple cubic, there is 1 formula unit; for body-centered cubic, there are 2 formula units; and for face-centered cubic, there are 4 formula units.
Is silver an ion or a formula unit?
Silver (Ag) is an element. Silver (Ag^+) is an ion. In neither case is it a formula unit. A formula unit applies to ionic solids, like NaCl, etc.
What is the relationship between empirical formula and formula unit?
A formula unit is an empirical formula.
What is the calculations of the density of gold based on the unit cell. The face-centered gold crystal has an edge length of 407 pm?
The face-centered cubic unit cell of gold contains 4 atoms. The volume of the unit cell can be calculated using the formula V = a^3, where a is the edge length. Then, the mass of the unit cell can be calculated using the density of gold. Finally, the density of gold can be calculated by dividing the mass of the unit cell by its volume.
What is the repeating group of a crystal called?
The repeating group of atoms in a crystal is called a unit cell. This unit cell is the smallest repeating structure that can be used to build up the entire crystal lattice.
