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Transcript of Nobel Gases
~Used in some types of photographic flashes.
~forms few compounds
~the high cost of Krypton from the air has limited it's practical use ~Colorless, heavy odorless noble gas.
~About 0.0000087% of the Earth's atmosphere
~Used in strobe lights, produces extremely white light, kills bacteria, powers ruby lasers
~Forms compounds with fluorine, oxygen and platinum
used for flash lamps, arc lamps,
~ if inhaled, can cause person’s voice to deepen. Noble Gases
By Settie, Manon and Molly What are noble gases? Helium Neon Radon ~Colorless, odorless, tasteless, non-toxic, inert gas
~Used for deep sea diving, and balloons
~ Second most abundant gas on earth
~ 0.0005% of the earth's atmosphere
~ Helium and oxygen together make nitrogen, used by deep sea divers to prevent nitrogen narcosis ~0.93% in the Earth's atmosphere
~Third most abundant gas
~used in fluorescent light bulbs, inert atmospheres, for arc welding, growing semiconductor crystals
~forms one compound, argon fluorohydride ~0.0000000000000000001% in the Earth's atmosphere
~Obtained through the decay of radium
~At room temperature: colorless, odorless, radioactive gas
~found at different levels in soil and rocks
~When cooled its a solid, and yellow
~it is present indoors and outdoors
~breaks down into solid radioactive elements called radon progeny
~colorless, odorless,monatomic (consisting of one atom) gas which has two thirds the density of air.
~vacuum tubes, high-voltage indicators, lightning arrestors, wave meter tubes, television tubes, and helium-neon lasers. ~used for flash lamps, arc lamps,and as a general anesthetic ~Group 18 or 0 on the periodic table
~They where considered chemically inactive until the 1960's
~They have the maximum amount of electrons making them stable (8)
~All found in the air
~All are gases
~Almost never react to other elements
~Make up 0.96% of the atmosphere
~Can be combined with other gases to create luminous signs that glow with a yellow-greenish light