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    • Illustration of the Element oxygen.
    Rights: The University of Waikato Te Whare Wānanga o Waikato Published 18 February 2019, Updated 11 March 2019 Size: 130 KB Referencing Hub media

    On the periodic table of elements, oxygen is represented by the symbol O. It has an atomic number of 8 because it has 8 protons in its nucleus.

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      Oxygen

      Oxygen is a chemical element – a substance that contains only one type of atom. Its official chemical symbol is O, and its atomic number is 8, which means that an oxygen atom has eight protons in ...

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