Titanium is a lightweight, high-strength, low-corrosion structural metal. Titanium is a silvery-white metal that resists corrosion (rusting): that's because it reacts readily with oxygen and forms a protective layer of titanium oxide that keeps out air and water. Titanium also resists attack by strong acids and alkalis. It's relatively hard and brittle when it's cold and you have to heat it up to work it into shape or draw it into wires. In chemical reactions, it forms lots of interesting compounds (when atoms of titanium bond to atoms of other elements); it also forms some extremely useful alloys (when titanium metal is "mixed" with other metals to combine their useful properties).
