O2- has 10 electrons with the configuration of neon or 1s2 2s2 2p6
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The noble gas configuration of O2 is similar to that of neon (Ne). Oxygen (O) typically forms a stable configuration by gaining 2 electrons to achieve a full valence shell, similar to the configuration of a noble gas.
A noble gas electronic configuration has an outer shell of ns2, np6. Examles of ions with this configuration are O2- [He], 2s2 2p6 (the neon configuartion) Cl- [Ne] 3s2 3p6 (the argon configuration)
The noble gas electron configuration of radon is [Xe]4f145d106s26p6.
The noble gas configuration of oxygen (O) is [He] 2s^2 2p^4, where [He] represents the electron configuration of the nearest noble gas, helium.
No, chlorine (Cl) does not have a noble gas electronic configuration. It has the electron configuration [Ne]3s^2 3p^5, which is one electron away from achieving a stable, noble gas configuration like argon (Ar).
The noble gas configuration of gallium (Ga) is [Ar] 3d^10 4s^2 4p^1, where [Ar] represents the electron configuration of the noble gas argon.