Electronic Configuration of Oxygen is as follow,
1s², 2s²,2px²,2py¹, 2pz¹
In Thionyl Chloride Oxygen is doubly bonded to carbon atom. So, in order to have complete octet oxygen share 2 bond pair of electrons with carbon. So, electronic configuration of oxygen in thionyl chloride is,
1s², 2s²,2px²,2py², 2pz²
Result:
Noble gas having 8 electrons in valence shell is Neon.
