Covalent Bonds Hold Atoms Together Because They

The forces that hold atoms together are called chemical bonds. For example water ice is ordinarily found in the hexagonal form Ice I h but can also exist as the cubic Ice I c the rhombohedral ice II and many other formsThe different polymorphs are usually called different phases.

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Every carbon atom is strongly covalently bonded to four others in diamond and because of this it forms a 3D lattice called a tetrahedron.

. The force is slightly more complex than the force between magnets but it works in the same way. Polymorphism is the ability of a solid to exist in more than one crystal form. When atoms combine they do so because they also experience an attractive force.

Hydrogen and helium are exceptions because they can hold a maximum of two valence electrons. They have distinct chemical structures characterized by a fixed ratio of atoms held together by chemical bonds. The same group of atoms can often solidify in many different ways.

Weak forces of attraction hold the layers of graphite together so they can slide over each other making graphite a great lubricant. The force holds atoms together as if they are stuck together with glue. A substance that contains atoms held together by covalent bonds is referred to as a molecule.

Here we discuss two classes of compounds based on the bond type that holds the atoms together.

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