Question

Does anyone know the formula for oxide?

Answer 1

its \[O _{2}\]

Answer 2

\(2O^-\) oxide ion.

Answer 3

@nikato isn't that oxygen gas?

Answer 4

Well, there's actually no formula for oxygen it's just a name for oxygen when combined with something else

Answer 5

I meant *oxide

Answer 6

Oxide refers to an ion right? @nikato

Answer 7

the oxide ion is \(O^{2-}\)

It will form ionic compounds with cations such as:

\(Mg^{2+}\) -> \(MgO\)
\(Na^{+}\) -> \(Na_2O\)
\(Al^{3+}\) -> \(Al_2O_3\)