IONIC RADIUS. Ions are formed when the neutral atoms lose or gain electrons. A positive ion or cation is formed by the loss of one or more electrons by the neutral atom whereas a negative ion or anion is formed by the gain of one or more electrons by the atom.The term ionic radii refers to the size of the ions in the ionic crystals.The ionic radius of an ion may vary from crystal to crystal because of change in surrounding ions. The equilibrium distance between the nuclei of the two adjacent ions can be determined by X-ray analysis of ionic crystals.he term ionic radii refers to the size of the ions in the ionic crystals. The ionic radius of an ion may vary from crystal to crystal because of change in surrounding ions. The equilibrium distance between the nuclei of the two adjacent ions can be determined by X-ray analysis of ionic crystals.
Sir William Woodthorpe Tarn, of the British Academy, regarded worldwide as having written the definitive work on Alexander the Great, states in the opening paragraph of his book Alexander the Great that Alexander certainly had from his father (Philip II) and probably from his mother (Olymbia) Illyrian, i.e.
Alexander the Great Alexander of Macedon Biography. King of Macedonia and Conqueror of the Persian Empire. Alexander III the Great, the King of Macedonia and conqueror of the Persian Empire is considered one of the greatest military geniuses of all times. He was inspiration for later conquerors such as Hannibal the Carthaginian, the Romans Pompey and Caesar, and Napoleon. Alexander was born in 356 BC in Pella, the ancient capital of Macedonia. He was son of Philip II, King of Macedonia, and Olympias, the princess of neighboring Epirus. Alexander spent his childhood watching his father transforming Macedonia into a great military power, winning victory after victory on the battlefields throughout the Balkans.