'''Chemistry''' (The origin of the word is from the greek word ''chemeia'') is the study of [[Chemical structure|structure]] (inter-atomic [[Chemical bond|bonding]] in molecules), composition, and properties of matter, as well as the interactions [[Chemical reaction|reactions]] of [[chemical elements element]]s and [[Chemical compound|compounds]]. Along with [[physics]], chemistry is one of the [[physical sciencesscience]]s. Chemistry is the modern counterpart to [[alchemy]]. Chemistry can be divided into several sub-branches.
Each Discipline of Chemistry has specific concepts that relate to it, however there are some concepts that are universal to the study of Chemistry, some of which are below:
=== Chemical Element ===
{{main|Element}}