During change of O_(2)" to " O_(2)^(-) ion, the electron adds on which one of the following orbitals ?

During change of O_(2)" to " O_(2)^(-) ion, the electron adds on which

1.	During change of O_(2)" to " O_(2)^(-) ion, the electron adds on which one of the following orbitals ?
Answer» `PI` ORBITALS `SIGMA` - orbitals `pi^()` orbitals `sigma^()`-orbitals ANSWER :C