Zirconium

Atomic symbol: Zr
Atomic number: 40
Atomic mass: 91.22

Appearance: Silvery white solid at 25°C

Group: 4
Period: 5
Series: Transition metals
Block: d
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d² 5s²

Highly resistant to corrosion.

Medical uses in the manufacture of surgical instruments, as well as being an element used in alloys to harden them and/or make them more resistant to corrosion.

Fun Fact! Zirconium has been seen for thousands of years in precious stones and gems like hyacinth and zircon.

http://www.chemicool.com/elements/zirconium.html