Solid
A solid object is in the
states of matter characterized by resistance to
deformation and changes of
volume. At the microscopic scale, a solid has these properties :The
atoms or
molecules that comprise the solid are packed closely together.These constituent elements have fixed
positions in
space relative to each other. This accounts for the solid's rigidity. In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. A crystal structure is composed of a unit cell, a set of atoms arranged in a particular way; which is periodically repeated in three dimensions on a lattice. The spacing between unit cells in various directions is called its lattice parameters. The symmetry properties of the crystal are embodied in its space group. A crystal's structure and symmetry play a role in determining many of its properties, such as cleavage, electronic band structure, and optical properties.If sufficient force is applied, either of these properties can be violated, causing permanent deformation.Because any solid has some
thermal energy, its atoms vibrate. However, this movement is very small, and cannot be observed or felt under ordinary conditions.
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Solid
État solide
Solid
Festkörper
Solid
Cialo stale
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Solido
Si definisce solido una porzione di materia che si trova in uno stato condensato; in tali condizioni le particelle che lo compongono (
atomi,
molecole o
ioni) sono:fortemente impacchettate tra lorooscillano attorno a posizioni relative fisse nello spazio (moto di agitazione termica)reagiscono ai cambiamenti di forma e di volume con sforzi che sono funzione dell'entità della deformazione subita.
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