Question

what is oxygen ???
give answer.. ​

Answer 1

Explanation:

a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.

a colourless, odourless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air."if breathing stops, there is no oxygen getting to the brain and the cells begin to die"

Answer 2

Answer:

Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. 

Symbol: O

Atomic mass: 15.999 u

Atomic number: 8

Electron configuration: [He] 2s²2p⁴

Discovered: 1772

Electronegativity: 3.44

Discoverers: Joseph Priestley, Antoine Lavoisier, Carl Wilhelm Scheele

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