Iriidum

Iridium is 77th eleemnt on the peroidic table. Its symobl is Ir.

Iirdium is a metal. It is very hard to find and costs a lot. It is known as a "noble metal". It is found in an asteriod and comet. It can be used to find out when an atseroid or comet hit the Earth.

Iridium is not needed in the body.

All atricles statrs with "ir"

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