Period 5 element other metal is not easily oxidized in air and is used to coat other metals to prevent corrosion. The firstalloy, used in large scale since 3000 BC, was bronze, an alloy of tin and copper. After 600 BC pure metallic tin was produced. Pewter, which is an alloy of 85–90% tin with the remainder commonly consisting of copper, antimony and lead, was used for tableware from the Bronze Age until the 20th century. In modern times tin is used in many alloys, most notably tin/lead soft solders, typically containing 60% or more of tin. Another large application for tin is
Gnathia vases Gnathia vases Gnathia vases are a type of pottery belonging to ancient Apulian vase painting of the 4th century BC. They are named after the ancient city of Gnathia (now Egnazia) in Eastern Apulia. There, the first examples of the style were discovered in the mid-19th century. Their production began in Apulia around 370/360 BC, in parallel to the local version of the red-figure style which developed tendencies towards polychromy around that time. Typical of Gnathia vases is the application of different paints directly onto the glazed vase body. Additionally, internal details could be added by incision. The themes depicted