The Washington tree, located in the Giant Forest Grove in Sequoia National Park provides a good example of the aforementioned phenomena. This tree was the second largest tree in the world (only the General Sherman tree was larger) until just a few years ago.
A halogen is a representative element from group VII in the periodic table. More specifically, Fluorine, Chlorine, Bromine, Iodine, and Astatine. Astatine is a very unstable radionuclide so is not normally dealt with. A halide is a chemical compound of halogens bonded to more electro positive elements.
What is Halon and How Does it Work? Halon is a Clean Agent.. The National Fire Protection Association defines, a Clean Agent as an electrically non-conducting, volatile, or gaseous fire extinguishant that does not leave a residue upon evaporation.. Halon is a liquefied, compressed gas that stops the spread of fire by chemically disrupting combustion.