Chemically inert gas is mainly used to fill hot air and party balloons. Balloons filled with it float upwards and this phenomenon is achieved as helium gas is less dense than air Chemically inert In chemistry, the term chemically inert is used to describe a substance that is not chemically reactive. Most Group 8 or 18 elements that appear in the last column of the periodic table (Helium, Neon, Argon, Krypton, Xenon and Radon) are classified as inert (or unreactive). These elements are stable in their naturally occurring form (gaseous form) and they are called inert gases. The noble gases were previously
Phase-out of incandescent light bulbs from broken bulbs may be overstated, and can be ameliorated by taking a few simple steps. No mercury is used in the manufacturing of LED lamps, a different technology replacement for incandescent lamps. In addition, LED lamps do not require warmup time in cold weather, and in fact, perform better in colder temperatures, making them an excellent choice for use in cold locations, such as refrigeration units. The initial cost of CFLs and LEDs are higher than that of incandescent light bulbs. Typically this extra cost is repaid in the long-term, as both use less energy and have longer operating