Ununseptium 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.

Ununseptium, Symbol: Uus, Atomic number: 117, Atomic weight: 294

An article published in Physical Review Letters on 5 April 2010 (submitted 15 March 2010, "Synthesis of a new chemical element with atomic number Z=117", claims the identification of six atoms of the isotopes 293Uus (five atoms) and 294Uus (one atom) in fusion reactions between 48Ca and 249Bk. Decay chains involving eleven nuclei were identified by means of the Dubna Gas Filled Recoil Separator. It is said that the measured decay properties show a rise of stability for heavier isotopes with Z>=111, validating the concept of the "long sought island of enhanced stability for super-heavy nuclei".