Why does phosphorus form P4 exists but P2 do not exists?

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The P2 molecule of phosphorus is not found because of the larger size of the phosphorus atom. The phosphorus is so larger that the p-orbitals which are required to overlapp sideways , are unable to overlapp sufficiently to make a pie bond.

Below is the structure of oxygen atom that is showing π-bond

structure of oxygen molecule

But phosphorus have a tendency to show catenation. And because of catination it can join with its own atoms and make covalent bonds. and thus it makes P4 molecule.

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Published by ankushmaster

I am M.Sc (chemistry ) from punjabi university. I am a science teacher with expertise in chemistry, with 8 years of experiance in teaching. i am getting a handsome salary , now i wish to help out the people who need me UNCONDITIONALLY. and I am constantly working on creating a new and easy way of learning the tough things in an effective way. I am constantly working to make authentic and reliable information to be shared with my students and widen the horizons of knowledge.

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