1.

The ground state electronic configuration ofoxygen in Li_(2)O is

Answer»

`1s^(2)2s^(2)2p^(4)`
`1s^(2)2s^(2)2p^(6)`
`1s^(2)2s^(2)2p^(2)`
`1s^(2)2s^(2)2p^(3)`

Solution :In`Li_(2)O` OXYGEN eixsts as `O^(2-)`.Its configuration is `1s^(2)2s^(2)2p^(6)`.


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