Question

please define oxygen​

Answer 1

Answer:

oxygen is one of the elements which is very important for our survival. It's atomic mass is 16u and valency is 2.

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

Explanation: