Philadelphia airports. Most flights to Philadelphia land at Philadelphia Intl. Airport (PHL), which is located in southern Philadelphia. PHL is the 12th largest airport in the world when ranked by traffic movements. It is also the largest airport in Philadelphia and the primary international hub of US Airways.
Ionic Definition: pertaining to something carrying a net electrical charge, as an ionic bond or ionic compound.
Ionic bond, also known as electrovalent bond is a type of bond formed from the electrostatic attraction between oppositely charged ions in a chemical compound. These kinds of bonds occur mainly between a metallic and a non metallic atom. Melting point.