Question

Draw the general structures (most stable ones) of molecules with steric number 5.
1) No lone-pairs of electrons.
2) One lone-pair of electrons. 3) Two lone-pairs of electrons. 4) Three lone-pairs of electrons.​

Answer 1

Answer:

The Lewis electron-pair approach can be used to predict the number and types of bonds between the atoms in a substance, and it indicates which atoms have lone pairs of electrons. This approach gives no information about the actual arrangement of atoms in space, however. We continue our discussion of structure and bonding by introducing the valence-shell electron-pair repulsion (VSEPR) model (pronounced “vesper”), which can be used to predict the shapes of many molecules and polyatomic ions. Keep in mind, however, that the VSEPR model, like any model, is a limited representation of reality; the model provides no information about bond lengths or the presence of multiple bonds.