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The factors affecting the shape of the molecules are the bonded e and the lone pairs of electrons
The molecule's function and chemical and physical properties
The short answer to your question is eight. Here is the long answer: SO3 has a total of 24 valence electrons. The central S is bonded to each of the O atoms. In the dot structure, one of the O atoms is double bonded to the S while the others have a single bond. This gives S its octet, using 8 of the valence electrons. The remaining 16 electrons exist as lone pairs. The two single bonded oxygens each have three lone pairs of electrons to obtain their octet. The double bonded oxygen has two lone pairs to obtain its octet. Since the double bond oxygen could be any of the three oxygens, the molecule is actually a combination of all three structures (the resonance structure).
linear
I is the central atom single bonded to the 4 Br atoms. I also has 2 lone pairs of electrons. It may also be written without showing the lone pairs on any of the electrons, but with a negative charge on the I atom instead (that's how it was on my homework).
linear
see-saw shaped. Note that the MOLECULAR structure is only concerned about the BONDED atoms, not the lone pairs. Although we take the lone pairs repulsive effects into consideration, we do not include them when DESCRIBING the shape of the bonded atoms
The factors affecting the shape of the molecules are the bonded e and the lone pairs of electrons
linear
Lone-pair electrons, Bonded pairs of electrons
linear
No. There is no such thing as a diatomic atom. A diatomic molecule is a molecule that contains two atoms. The number of lone pairs depends on what atoms are bonded.
Non bonded pairs have a higher force of repulsion than bonded pairs, as the bonded pairs also feel the pull of another positive nucleus. The shape of a molecule is distorted. 2 example - NH3 (one lone pair) & H2O (2 lone pairs). NH3 is trigonal pyramidal while H2O is bent.
When there are two atoms bonded to the central atom and no lone pairs, the molecule adopts a linear shape. When lone pairs are present, bent geometry can be present.
It has 3 bonded pairs with no lone pairs. These bonded pairs repel evenly between each electron pair. So it is a trigonal planar shape.
No,pcl3 has one lone pair and three bonded pair , shape of trigonal pyramidal with a bond angle of 107 degrees whereas bcl3 has 3 bonded pairs and no lone pairs , shape of trigonal planar with the bond angle of 120 degrees.
One on each side (at 180º) of the central atom.