I Group 7A 7 val. e- x 1 = 7 val. e-
F Group 7A 7 val. e- x 3 = 21 val. e-
Total = 28 val. e-
I → less electronegative than F → central atom
2 lone pairs and 3 atoms around central atom → AX3E2 → T-shaped
Te Group 6A 6 val. e- x 1 = 6 val. e-
F Group 7A 7 val. e- x 4 = 28 val. e-
Total = 34 val. e-
Te → less electronegative than F → central atom
Predict the molecular geometries of the following species, respectively: IF3, TeF4, XeF5+.
A. trigonal pyramidal, square planar, linear
B. trigonal pyramidal, tetrahedral, see-saw
C. trigonal planar, tetrahedral, square pyramidal
D. T-shaped, see-saw, square pyramidal
E. trigonal planar, see-saw, square planar
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