For a two element ionic compound, the naming is simple. The first part of the name is the name of the metal element. The second part is the name of the nonmetal element, with the suffix â-ide.â. 1  Example: Al 2 O 3.
Exploration & Excavation in Chaco Canyon. It's believed that the first Europeans to see Chaco Canyon came in the 17th Century, when Spanish soldiers engaged in military actions against the Navajos first entered the Chaco area.
They were followed by Chavin, Paracas, Nazca, Moche, Tiawanaku, Wari and Chimu. Between 1150 and 1250BC the Incas, by then a small tribe, were searching for farmland which they found in the fertile mountain valleys of Cusco.