Question

atomic number of O+2
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Answer 1

≈≈> 8

≠≠> O2- still has an atomic number of 8, corresponding to the 8 protons, but it has 10 electrons. Every element has a different atomic number, ranging from 1 to over 100. On the periodic table, the elements are arranged in the order of atomic number across a period.

Answer 2

Answer:

The answer will be 8.

Explanation:

Since it is the oxygen atom hence, it's atomic number or Z will be 8.

The atomic number of any element doesn't get effect when they become an ion or not.

That's all,