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# The Basic Properties of Solids

Solids are one of the four basic states of matter. Their molecules are tightly packed and they have the least kinetic energy. They are also very stiff and resistant to forces that are applied to their surface. Let’s learn more about the basic properties of solids. To begin, we need to define what a solid is. In other words, a solid is a material that resists force. In addition to being rigid, solids are malleable.

## Solids are arranged in a lattice

Solids are a group of materials that have a regular arrangement of particles and are almost incompressible. They have an even number of bonds, ensuring that each particle has the same strength. The lattice of solids also ensures that each particle will have a unique melting point when subjected to heat. Solids are the densest of all three states of matter.

## They resist forces applied perpendicular or parallel to a surface

The force acting on a solid’s surface creates a pressure on the solid. The pressure is equal to the force times the area of the surface. If the force applied perpendicular to a surface is great enough, the solid will deform and the pressure will be increased. Similarly, if a force applied perpendicular to a surface is small, the pressure will be reduced.

## They are tightly-packed compared to liquids and gases

When comparing solids and liquids, you’ll notice that solids contain more molecules per cubic meter. The molecules in a solid are tightly packed, and their motion is restricted by the small amount of space between them. Liquids and gases, on the other hand, have large amounts of molecules that slide past each other. This difference helps explain why liquids and gases have the properties they do.

## They are malleable

Metals are a common example of ductile or malleable materials. Their properties include a high melting point and ductility, but are not electrically conductible. These materials can be squirted or rolled into pipe or sheets by a process called squirting. In this method, a powerful syringe is filled with a solid metal. The pressure on the piston is varied according to the size of the object, but can reach up to two thousand tons.

## They are ductile

A material is ductile if it can be shaped and bent with a small amount of force. Gold, for example, is a very ductile metal, commonly used in jewelry, art and food. Other ductile solids include iron, copper, lead and silver. Most metals and metalloids are ductile as well. However, not all materials are ductile. Metals are more ductile than nonmetals.

## They are opaque

Whether we can see them or not depends on how much light they absorb. Many solids are opaque and some are transparent. Most solids contain high amounts of solids. These solids have a high atomic number, making them opaque to light. In addition, many of these solids are non-manifold, meaning that they cannot be drawn. These solids can be imported to sketchup by exporting them as.stl.

## They are lustrous

The metals are solids that conduct electricity, have a lustre similar to metals, and are opaque and malleable. Metals are ductile and can be compressed into thin sheets or wires. Their malleability is one of their major properties, allowing them to take on new forms under pressure. Some of the nonmetals have a low melting point, but are otherwise a nonconductor of electricity.

## They are dense

Solids are composed of atoms or molecules that are bonded together. These molecules form chains, networks, and perfect single crystals. For example, a diamond structure is made up of sp3 hybridized carbon atoms that are bonded to four other carbon atoms in a tetrahedral arrangement. Each of these atoms has 12 nearest neighbors, and thus the solid is extremely dense.