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
Square Mouthed Vases culture Square Mouthed Vases culture The Square Mouthed Vases culture (Italian: "cultura dei vasi a bocca quadrata") is a culture of the Middle Neolithic period, widespread in northern Italy during the fifth millennium BC. The name comes from the characteristic type of vessel, which has a square mouthpiece instead of circular. The culture is divided into three different time periods, depending on the style of the pottery decoration: the oldest is known as the Finale-Quinziano and shows a decoration of small incisions and graffiti; the middle period or Rivoli-Chiozza is characterized by meander and spiral decorations; while the most recent phase,