Chemistry
Chemistry is the science that deals with the properties of organic and inorganic substances and their interactions with other organic and inorganic substances.
In the study of matter, chemistry also investigates the movement of electrons.
Because of the diversity of matter, which is mostly composed of different combinations of atoms, chemists often study how atoms of different chemical elements interact to form molecules and how molecules interact with each other.
For more information about the topic Chemistry, read the full article at Wikipedia.org, or see the following related articles:
Chemical compound — A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition.
The ratio of each element is usually expressed by chemical formula.
For example, water (H2O) is a compound consisting of two hydrogen atoms bonded to an oxygen atom. The atoms within a compound can be held together by a variety of interactions, ranging from covalent bonds to electrostatic forces in ionic bonds.
A continuum of bond polarities exist between the purely covalent bond (as in H2) and ionic bonds.
For example H2O is held together by polar covalent bonds.
Sodium chloride is an example of an ionic compound.
Materials science — Materials science is an interdisciplinary field involving the properties of matter and its applications to various areas of science and engineering.
It includes elements of applied physics and chemistry, as well as chemical, mechanical, civil and electrical engineering.
With significant media attention to nanoscience and nanotechnology in the recent years, materials science has been propelled to the forefront at many universities, sometimes controversially.
In materials science, rather than haphazardly looking for and discovering materials and exploiting their properties, one instead aims to understand materials fundamentally so that new materials with the desired properties can be created.
The basis of all materials science involves relating the desired properties and relative performance of a material in a certain application to the structure of the atoms and phases in that material through characterization.
Chemical bond — A chemical bond is the physical phenomenon of chemical substances being held together by attraction of atoms to each other through sharing, as well as exchanging, of electrons -or electrostatic forces.
In general, strong chemical bonds are found in molecules, crystals or in solid metal and they organize the atoms in ordered structures.
Weak chemical bonds are classically explained to be effects of polarity, or the lack of it, of strong bonds.
Molecule — In general, a molecule is the smallest particle of a pure chemical substance that still retains its composition and chemical properties. In chemistry and molecular sciences, a molecule is a sufficiently stable, electrically neutral entity composed of two or more atoms.