Radion

Radion is a substance on Tallon IV that can be destroyed by Missiles. It can be found in locations such as the fuel cells destroyed by Samus Aran at the Control Tower at Phendrana Drifts, used to access the Artifact of Elder.

Etymology

 * Radon is a radioactive, colorless, odorless, tasteless noble gas, occurring naturally as the decay product of radium. It is one of the densest substances that remains a gas under normal conditions and is considered to be a health hazard due to its radioactivity.