Molecular structure

[Kayla Cho 2C]

What about the molecule would differentiate it being a see-saw structure from a trigonal planar?

[Jayden Lee 2F]

Hi ! A molecule is trigonal planar when there arent any lone pairs on the central atom, making everything lie flat in a nice triangle. But if there’s a lone pair messing things up, it turns into a see-saw shape because the electrons push the other bonds into a tilted arrangement. Hope this helps !