Quantum mechanics (QM; also known as quantum physics or quantum theory) including quantum field theory, is a fundamental branch of physics concerned with processes involving, for example, atoms and photons.
Use oxide in a sentence. 1  a binary compound of oxygen with some other element or with a radical. 2  Divalent anionic oxygen, or a compound of oxygen, especially a binary compound of oxygen with a more electropositive element. Origin of oxide. French ox(ygÃ¨ne) oxygen ; see oxygen . (ac)ide acid ( from Latin acidus tart, acid ; see acid .
Oxides are compounds that contain at least one oxygen atom combined with another element. Oxygen is usually in the form of an anion (O2-). Transition metal oxides such as titanium (III) oxide (Ti2O3) and iron (III) oxide (Fe2O3) have useful magnetic and catalytic properties. Let's go over some examples of reactions.