Welcome to the periodic table of the elements powered trail; which begins at Mount Henry Bridge and continues south down the freeway cycle path. Please stay safe and enjoy the power trail.
08/10/2018 Update: the Periodic Table series has been adopted by multiple volunteers.
The periodic table of elements are those approved by the International Union of Pure & Applied Chemistry.
Sodium is a Group 1 element (IA in older labelling style) often referred to as the "alkali metals". The chemistry of sodium is dominated by the +1 ion Na+. Sodium salts impart a characteristic orange- yellow colour to flames, and street lighting is orange because of the presence of sodium in the lamp. Source: Webelements
The original containers (placed by BlaKids & LouBla) are small tubes as shown here...
These containers have logbook inside them only, thus be sure to BYO pen.