77
Ir
Iridella
![Iridium](http://elemonster.de/sites/default/files/styles/large/public/field/image/077_Iridium-02.png?itok=5eKEjKbX)
The name iridium is derived from the greek word Iris, the Greek goddess of the rainbow, because iridium-compounds are very colourful. It is supposed to be the most corrosion-resistant element. It is used in many appliances, where persistence is important, for example in pen tips.
Add new comment