2016年7月12日 · Re: Molecular geometry vs. electron domain geometry Post by Chem_Mod » Tue Jul 12, 2016 9:45 pm If there is no lone pair, all the electron domains form bonds and the electron domain geometry is the same as molecular geometry.

2019年11月21日 · The electron pair geometry is based only on how many regions of electron density there are around the atom (whether it is a bonding pair or lone pair is irrelevant). If a molecule has 2 regions of electron density, then the electron density is linear, if there is 3: trigonal planar, 4: tetrahedral, 5: trigonal bipyramidal, 6: octahedral.

2018年11月18日 · Molecular shapes include: Linear, trigonal planar, tetrahedral, trigonal bipyramidal, and octahedral. Note that in order to determine molecular shape you ignore the repulsion of lone pairs of electrons and only count the electron densities. Electron geometry includes: Bent, trigonal pyramid, seesaw, T-shape, square planar, etc.

2018年11月15日 · Molecular geometry does not consider lone pairs as areas of electron density. An example would be a molecule with VSEPR formula AX4E2. There are 6 bonding regions, 4 bonding pairs and 2 lone pairs. AX4E2 is square planar (molecular geometry). The electron geometry of this molecule would be octahedral because there are 6 bonding regions all.

2019年11月21日 · Re: electron-pair geometry vs molecular geometry Post by Jacey Yang 1F » Thu Nov 21, 2019 10:32 pm The electron pair geometry is based on the number of regions of electron density around the atom (parent shape), while molecular geometry is the actual shape that includes bonding pairs and lone pairs.

2018年11月19日 · Molecular shape is the actual position of the atoms, not including lone pairs. For example, NH 3 electron geometry is tetrahedral (due to 3 bonds and 1 lone pair), but the molecular geometry is trigonal pyramidal, due to its 3 bonds (so just the 3 bonds/atoms).

2020年11月30日 · So for example, if there are four atoms bonded to the central atom, the electron geometry is tetrahedral because there are four bonds. If the atoms are all bonded at the four places, the molecular shape is tetrahedral. But if there is one lone pair of electron and the other three are bonds, then the molecular geometry changes to trigonal pyramidal.

2019年11月18日 · Re: Molecular Shape vs Electron Geometry Post by Montana James 4G » Tue Nov 19, 2019 7:25 am I always think of it as that electron geometry only considers how many regions of electron density there are (i.e. 3 regions = trig planar) while molecular geometry considers whether there are lone pairs or bonded pairs (i.e. 2 bonded pairs, 1 lone ...

2021年11月5日 · Re: Molecular Geometry vs Electron Domain Geometry Post by Meg Yuan 1G » Fri Nov 05, 2021 3:59 pm Electron geometry is the arrangement of electron groups whereas molecular geometry just focuses on the arrangement of atoms based on the central atom and doesn’t include lone pairs.

2016年7月11日 · This is due to the presence of lone pairs. If there is no lone pair, all the electron domains form bonds and the electron domain geometry is the same as molecular geometry. However, if there is a lone pair, the lone pair doesn't form a bond and therefore doesn't contribute to the shape of the whole molecule.