An anion is an ionic species having a negative charge. They are atoms that have gained electrons. Anions are one of the two types of ions. The other type is called a cation. Anions are attracted to the anode, while cations are attracted to the cathode. The concept of an anion is important in the corrosion industry because certain anions facilitate corrosion.
Greece is home to a series of ancient volcanoes, including those on the islands of Kos, Methana, Milos, Nisyros, Poros and Santorini.reece is home to a series of ancient volcanoes, including those on the islands of Kos, Methana, Milos, Nisyros, Poros and Santorini.
The six northern islands are off the west coast of Greece, in the Ionian Sea. The seventh island, Kythira, is off the southern tip of the Peloponnese, the southern part of the Greek mainland. Kythira is not part of the region of the Ionian Islands, as it is included in the region of Attica.