How do you draw VSEPR structures?

1 Answer
Aug 3, 2017

Answer:

How do you draw a line; how do you draw a triangle; how do you draw a tetrahedron; how do you draw a Platonic solid?

Explanation:

See this link for a start.

imgarcade.com

Depending on the number of electron pairs surrounding the central atom, electronic geometry assumes shapes of: #"2 electron pairs, linear"#; #"3 electron pairs, trigonal planar"#; #"4 electron pairs, tetrahedral"#; #"5 electron pairs, trigonal bipyramidal"#; #"6 electron pairs, octahedral"#.

Of course the final molecular geometry depends on whether the electron pairs are lone pairs or bonding pairs. The descent of symmetry from say methane, tetrahedral, to ammonia, trigonal pyramidal is well-known.....but electronic shape/geometry assumes ONE of the 5 given geometries.