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

By ankushmaster on May 23, 2020March 11, 2021

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 But phosphorus

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chemistry science

Bond angles of PF3 and PCl3

By ankushmaster on May 17, 2020March 11, 2021

In case of PF3 the size of F is small and thus it approaches near to the central atom that is P. as it approaches near to P there comes the repulsion between the bond pairs, which widens the bond angle and makes it larger than in case of PCl3. Here two types of forces