Would you expect the nonbonding electron-pair domain in NH3 to be greater or less in size than for the corresponding one in PH3?

* greater

* lesser

Respuesta :

Answer:

Less

Explanation:

The bond angle in NH3 is greater than the bond angle in PH3.

According to the valence shell electron pair repulsion theory, the shape of molecules depends on the number of electron pairs that surround the central atom. The electronegativity of the central atom determines the bond angle of the molecule. The greater the electronegativitty of the central atom, the greater the bond angle.

Nitrogen is more electronegative than Phosphorus hence, the bond angle in NH3 is greater than the bond angle in PH3.

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