Question

If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y-:X:-Y could be abbreviated as XY2Z2.

Classify these structures according to their shape.
XY2Z,XY2Z2,XY2Z3,XY3Z,XY3Z2,XY4Z,XY4Z2,XY5Z

The categories are linear, bent(~120), bent(~109), trigonal pyramidal, t-shaped, see-saw, square planar, square pyramidal

Answer 1

I would classify it as angular (like H2O molecules with angle about 105 or so but the table you wrote below shows XY2Z2 as bent (about 120)