CHEMISTRY Chapter Notes -London Dispersion Force, Covalent Bond, Ammonia
Document Summary
The building blocks of molecular solids are molecules. They are further separated into three groups: first, A non-polar covalent bond holds the atoms or molecules that make up these substances together. The atoms or molecules are held together by london forces or weak dispersion forces. In terms of their physical composition, non-polar solids are soft. They don"t conduct electricity since they are insulators. Examples are h2, cl2, i2, etc: second, polar molecular. These materials are held together by polar covalent bonds rather than by dipole-dipole interactions, which are weaker. Due to the soft nature of the physical universe, the majority of them are at-room-temperature gases or liquids. They have a higher melting point and are less flammable than non-polar molecular solids. Examples include hcl, so2, and nh3: molecular. With the atoms of hydrogen, fluorine, nitrogen, oxygen, and covalently bound to the solids. These solids" molecules are held together by strong hydrogen bonds.
