Chemistry is the scientific study of the properties and behavior of matter. It is a physical science within the natural sciences that studies the chemical ...

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Chemical compounds are molecules made of atoms of different elements, while mixtures contain atoms of different elements not necessarily combined as molecules.

List · Discovery of chemical... · List of chemical element name...

The periodic table, also known as the periodic table of the elements, is an ordered arrangement of the chemical elements into rows ("periods") and columns ...

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A chiral molecule or ion exists in two stereoisomers that are mirror images of each other, called enantiomers; they are often distinguished as either "right- ...

Element symbols for chemical elements, also known as atomic symbols, normally consist of one or two letters from the Latin alphabet and are written with the ...

118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a ...

A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. When chemical reactions occur, ...

Chemical equation · Nuclear chemistry · Reaction models

Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and ...