In between o and o^2- which one has highest ionisation energy
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The answer is O.Because O only needs one electron to achieve a stable octet electron arrangement. .So, it is more electronegative. Electronegative means the tendency of ion to accept elec tron and become negatively charged
jayaprakash4541:
It is O^2- right?
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O^2- because it has fully filled p orbital therefore requires more energy to remove the electrons.
Ionisation energy is the energy required to remove outermost electron.
Because why molecular oxygen has 157 KJ energy ,while atomic Oxygen has 1314 Kj energy per mole. Obviously ionisation energy of Oxygen atom is higher.It is due to two different concepts , we remove electron from Oxygen atom while considering its atomic configuration.In molecular oxygen we consider MOT (molecular orbital theory concept where electrons are in antibonding orbital.
In atomic oxygen electron is tightly held by nucleus, but in molecular oxygen it is weaker attraction.
In atomic oxygen electron is tightly held by nucleus, but in molecular oxygen it is weaker attraction.
O^2- is not a molecule 2- is the charge of oxygen ie it has gained 2 more electrons
What is ionisation energy?
Ionisation energy is the energy required to remove outermost electron
Anion will accept electron not remove electron
But O2- has fully filled configuration it is hard to remove the paired electrons unpair it and remove. for that more energy is supplied
Okay thanks .I think your answer is correct.
Thank you very much
Thankss
Okay welcome
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