Ionic order that the Doric column had its initial basis in the proportions of the male body, while Ionic columns took on a "slenderness" inspired by the female body. Though he does not name his source for such a self-conscious and "literary" approach, it must be in traditions passed on from Hellenistic architects, such as Hermogenes of Priene, the architect of a famed temple of Artemis at Magnesia on the Meander in Lydia (now Turkey). Renaissance architectural theorists took his hints, to interpret the Ionic order as matronly in comparison to the Doric order, though not as wholly feminine as the Corinthian
Ionic compound usually in a crystalline structure. Ionic compounds containing hydrogen ions (H) are classified as acids, and those containing basic ions hydroxide (OH) or oxide (O) are classified as bases. Ionic compounds without these ions are also known as salts and can be formed by acid–base reactions. Ionic compounds can also be produced from their constituent ions by evaporation of their solvent, precipitation, freezing, a solid-state reaction, or the electron transfer reaction of reactive metals with reactive non-metals, such as halogen gases. Ionic compounds typically have high melting and boiling points, and are hard and brittle. As solids they are almost