where are noble gasses found on the periodic table
Noble gas For the first six periods of the periodic table, the noble gases are exactly the members of groupÂ 18. Noble gases are typically highly unreactive except when under particular extreme conditions. The inertness of noble gases makes them very suitable in applications where reactions are not wanted. For example, argon is used in light bulbs to prevent the hot tungsten filament from oxidizing; also, helium is used in breathing gas by deep-sea divers to prevent oxygen, nitrogen and carbon dioxide (hypercapnia) toxicity.
History of the periodic table In 1864, the English chemist John Newlands classified the sixty-two known elements into eight groups, based on their physical properties.[8][9][6]