Can phosphorus with outer electronic configur | vedclass

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(B) Although phosphorus exhibits $+3$ and $+5$ oxidation states,it cannot form $PH_{5}$.High $\Delta_{a} H$ (enthalpy of atomization) value of dihydro

Vedclass · Accepted Answer

No,because the high energy required for $PH_{5}$ formation is not compensated.

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(B) Although phosphorus exhibits $+3$ and $+5$ oxidation states,it cannot form $PH_{5}$.High $\Delta_{a} H$ (enthalpy of atomization) value of dihydrogen and $\Delta_{e g} H$ (electron gain enthalpy) value of hydrogen do not favour the formation of $PH_{5}$.Consequently,the energy released during the formation of $5$ $P-H$ bonds is not sufficient to overcome the energy required for the excitation of electrons and the atomization of $H_{2}$.

Can phosphorus with outer electronic configuration $3s^{2} 3p^{3}$ form $PH_{5}$?

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