Roentgenium Traditional Cache

Welcome to the Ocala National Forest! You seek an ammo can along a mostly minivan safe road. This cache is part of the “Elemental Series”. Please drive carefully, and avoid the soft roadway shoulders so you don't get stuck.

Roentgenium, Symbol: Rg, Atomic number: 111, Atomic weight: 280

Element 111, roentgenium, was discovered towards the end of 1994 at the GSI in Darmstadt, Germany. Three atoms of an isotope 272Uuu were produced in reactions between 209Bi targets and 64Ni projectiles. To achieve this, the nickel atoms were accelerated to high energies by the heavy ion accelerator UNILAC at GSI and directed onto a lead target. Chemically, roentgenium should be in the same group as the elements copper, silver, and gold. Roentgenium is named for Wilhelm Conrad Ro"ntgen, who discovered x-rays.