In
chemistry
Chemistry is the scientific study of the properties and behavior of matter. It is a natural science that covers the elements that make up matter to the compounds made of atoms, molecules and ions: their composition, structure, proper ...
, an oxycation is a
polyatomic ion
A polyatomic ion, also known as a molecular ion, is a covalent bonded set of two or more atoms, or of a metal complex, that can be considered to behave as a single unit and that has a net charge that is not zero. The term molecule may or may no ...
with a
positive charge
Electric charge is the physical property of matter that causes charged matter to experience a force when placed in an electromagnetic field. Electric charge can be ''positive'' or ''negative'' (commonly carried by protons and electrons resp ...
that contains
oxygen
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements ...
.
Examples
*
Dioxygenyl ion,
*
Nitrosonium ion,
*
Nitronium ion,
*
Vanadyl ion, VO
2+, a very stable oxycation
*
Uranyl ion, , all natural U
6+ occurs in this form
*
Zirconyl ion, as a tetramer of
r(OH)2sup>2+
See
category for a bigger list.
See also
*
Oxyanion
*
List of aqueous ions by element
This table lists the ionic species that are most likely to be present, depending on pH, in aqueous solutions of binary salts of metal ions. The existence must be inferred on the basis of indirect evidence provided by modelling with experimental da ...
External links
*
Cations
{{Inorganic-compound-stub