[SkiPY]

O₂^-    O^-      O^2-

Hi, can anybody explain me, what's the difference between above mentioned oxygen forms?

[ifuller]

I am not entirely sure but off the top of my head,
The first (from left to right) is diatomic oxygen with a negative charge.
The second is monatomic oxygen also with a negative charge.
Finally the last one is monatomic oxygen with a negative two charge.

The subscript (lower) number two on the first O stands for the number of oxygen atoms present. The oxygen we breath is mainly this O2.
The superscript numbers and minus signs denote the charge on the atom. In this case a negative sign shows that the atom has one more electron than proton. Someone please check me on all of this but I think that is mostly right.

[AWK]

O₂^-    O^-      O^2-

Hi, can anybody explain me, what's the difference between above mentioned oxygen forms?

Count atoms and electrons

[SkiPY]

thank you for your answers