To achieve an octet, the oxygen atom forms an ion. the name of this ion is

oxide ion

oxygen ion

oxic ion

oxous ion

The correct option is oxide ion

Explanation:

In the periodic table, elements (other than noble gases) tend to achieve there duplet/octet electron configuration (having a completely filled outermost shell) by either donating or accepting electrons. Generally, metals donate electrons to become positively charged cations while non-metals accept electrons to become negatively charged anions.

Oxygen accepts two electrons in order to have a fully filled outermost shell and become O²⁻ or oxide ion. Oxygen itself is an element and it's ion is called oxide ion

i think it is true since you can test the answer and can use observations to complete it.