Determine the electron-group arrangement, molecular shape, and ideal bond angle for the following molecule: ph3 electron-group arrangement: tetrahedral trigonal pyramidal v-shaped trigonal planar molecular shape: tetrahedral trigonal pyramidal t-shaped bent ideal bond angle: degrees.

The molecular shape and ideal bond angle of the is trigonalbipyramidal and respectively.

Explanation:

The structure of    is as follows.(in attachment)

From the structure,

Phosphor atom has one lone pair and three hydrogens are bonded by six electrons.

Therefore, total electrons invovled in the formation  is eight.

Hence, four electron groups which indicate the tetrahedral shape. But one pair is lone pair i.e, present on the phosphor atom.

Therefore, ideal geometry of the  molecule is Trigonalbipyramidal.

The ideal angle of trigonalbipyrmidal is .

All three bonds of P-H has .

Therefore, ideal bond angle is .

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