Answer:
D) trigonal pyramidal
Explanation:
phosphine (PH₃)
Valence electrons of Phosphorous = 5
Valence electrons of hydrogen = 1
The total number of the valence electrons = 5 + 3(1) = 8
The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,
Number of bonded pairs = 8 - 2 = 6
number of lone pair of electron = 2
hence ,
The geometry is trigonal pyramidal
The Lewis structure is:
