Oxygen is a nonmetallic gas which is important for us not only for its industrial applications but also for its biological necessity —we cannot live without oxygen beyond a couple of minutes.  All living beings need to breathe in oxygen for staying alive. When we breathe air oxygen is absorbed into the blood stream in

Oxygen is a nonmetallic gas with atomic number of 8 in the periodic table.  The nonmetallic element is represented chemically with symbol O. You cannot taste, smell, touch or see the nonmetallic gas; however, that does not take way your ability to understand the importance of the gas in the human, nay, animal life. Moreover,