Answer:
-2
Explanation:
The model of the oxygen atom will probably have an electrical charge of -2.
Now let us explain how to find the charge on any atom.
The charge on an atom is the number of electrons gained or lost by specie. Electrons are usually lost in any atom so that they can attain stability.
These electrons are removed from the valence shell because they are the outermost shell electrons. They are most weakly held electrons in an atom.
An atom of oxygen has:
8 electrons with a configuration of 1s² 2s² 2p⁴
Charge = number of protons - number of electrons
neutral oxygen has 8 electrons and protons, charge is 0
