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.
Crete and Evia are its two largest islands and major island groups include the Argo-Saronic, Cyclades, Dodecanese, Ionian, Northeast Aegean and Sporades. With the vast percentage of its land comprised of hills and rugged mountains, Greece is one of the most mountainous countries in Europe. Its 13,676 km toothy-edged shoreline is deeply indented by dozens of gulfs.