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Which of the following atoms has the low...

Which of the following atoms has the lowest ionization potential ?

A

`O_2^(2-)`

B

`O_2`

C

`O_2^(+)`

D

`O_2^(-)`

Text Solution

Verified by Experts

The correct Answer is:
D
`pi^(*)2P_x^2.pi^(*)2P_y^1` antibonding molecular orbitals contain 3 electrons in `O_2^(-)`. There energy being more, ionisation potential is less.
B.O.of `O_2= 2`
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