Argon 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.

Argon, Symbol: Ar, Atomic number: 18, Atomic weight: 39.948

Argon is a colourless and odourless gas present to a very small extent in the atmosphere. Argon is very inert (indeed it is referred to as one of the noble gases) and is not known to form true chemical compounds. It makes a good atmosphere for working with air-sensitive materials since it is heavier than air and less reactive than N2. Today, the chemical symbol for argon is Ar but until 1957 its symbol was simply A.