zirconium

1. zirconium By: Gianna Nordo Period:3

2. Periodic Table 40 Zr Zirconium 91

3. Electron Diagram of Zirconium 2,8,18,10,2

4. Info. And Physical Description • Name: Zirconium • Symbol: Zr • Atomic Number: 40 • Atomic Weight: 91.224 • Group: 4 • Period: 5 • Zirconium is a grey-white solid lustrous metal. It can ignite in air spontaneously at elevated temperatures. The melting point is 2128K . The boiling point is 4682K. Also the density is 6511kg.

5. History of Zirconium • Zirconium was discovered by Martin Heinrich Klaproth in 1789 in Berlin, Germany. The origin of name was from the Arabic word “zargun” meaning “gold colour” describing the color of the gemstone. Many minerals also contain Zirconium and have been known since biblical times and are mentioned in the bible several times. The existence of Zirconium in these minerals weren’t discovered until Klaproth came along. Pure zirconium was first prepared until 1914.

6. Uses and Impact on human life • Zirconium is very resistant to corrosion by many common acids and alkalis and by sea water. It is therefore used extensively by the chemical industry. • It is used as an alloying agent in steel and for making surgical appliances. • Zirconium is used in flash bulbs for photography, in explosive primers (a small explosive device also known as a blasting cap), and in lamp filaments. • There really isn’t any impacts it has on human life

7. Pictures of your elements in action