11. PF3 - use a blue ball for phosphorus when constructing this model Total # of Valence Electrons: 26 3-D Model Sketch Lewis Structure (show all resonance structures if applicable) F-P-F F Any polar bonds in the molecule? Yes No 12. NOCI Total # of Valence Electrons: Lewis Structure (show all resonance structures if applicable) Any polar bonds in the molecule? Yes No Molecular Shape: Trigonal Pyramidial Molecular Polarity: Polar 3-D Model Sketch Molecular Shape: Molecular Polarity: Polar Bond Angles Non-Polar Bond Angles Non-Polar
Formal Charges
Formal charges have an important role in organic chemistry since this concept helps us to know whether an atom in a molecule is neutral/bears a positive or negative charge. Even if some molecules are neutral, the atoms within that molecule need not be neutral atoms.
Polarity Of Water
In simple chemical terms, polarity refers to the separation of charges in a chemical species leading into formation of two polar ends which are positively charged end and negatively charged end. Polarity in any molecule occurs due to the differences in the electronegativities of the bonded atoms. Water, as we all know has two hydrogen atoms bonded to an oxygen atom. As oxygen is more electronegative than hydrogen thus, there exists polarity in the bonds which is why water is known as a polar solvent.
Valence Bond Theory Vbt
Valence bond theory (VBT) in simple terms explains how individual atomic orbitals with an unpaired electron each, come close to each other and overlap to form a molecular orbital giving a covalent bond. It gives a quantum mechanical approach to the formation of covalent bonds with the help of wavefunctions using attractive and repulsive energies when two atoms are brought from infinity to their internuclear distance.
complete #11 & #12, use #15 as an example!
![15.
SO32-
Total # of Valence Electrons: 26
Lewis Structure (show all resonance structures if applicable)
(-1)
[
(-1)
:0
(-1)
-Ö:
J
since is more
(-1)
(-1)
:0=S—0:
I
:0:
:0-S=0:
(-1)
Any polar bonds in the molecule? Yes No
Total #
valence cs
= 6+ 3(6) +2 = 26
Polar
lectronegative
1
3-D Model Sketch
:0
[ 0 = 1
+]
:0:
= 3
Bond fairs:
Love pairs = 1
Total clechon pairs = 4
:Ö:
than O, 5-0 bonds
4
are polar.
Bond Angles
Molecular Shape: Trigonal Pyramidal
Molecular Polarity: Polar Non-Polar
109.5°](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4200bda6-0630-44a7-a2e4-58c2881d874d%2F392f1df4-45dc-4f17-bb09-cd778b9279be%2F8s5fdh_processed.jpeg&w=3840&q=75)
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