12a. Complete the Lewis structure of glycine by adding the five (5) hydrogens in the structure, lone pair of electrons, and shared pair of electrons. You can use dashes (----) in lieu of shared pairs of electrons, to indicate where the covalent bonds (either single, double, cr triple bonds) are formed between the atoms. ! 12b. What is the shape around the N atom (assume N here as a central atom)? (
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.
Please do question 12, 12a, and 12b
![**QUESTION 12.** Glycine is an amino acid used in the synthesis of proteins. Its molecular formula is \( \text{C}_2\text{H}_5\text{NO}_2 \). Below is a partial arrangement of the atoms of glycine.
\[ \text{N} \quad \text{C} \quad \text{C} \quad \text{O} \]
\[ \text{O} \]
**12a.** Complete the Lewis structure of glycine by adding the five (5) hydrogens in the structure, lone pair of electrons, and shared pair of electrons. You can use dashes (----) in lieu of shared pairs of electrons, to indicate where the covalent bonds (either single, double, or triple bonds) are formed between the atoms.
**12b.** What is the shape around the N atom (assume N here as a central atom)?
**12c.** What is the shape around the O atom that is connected to C on the rightmost side of the structure (assume O here as a central atom)?
**12d.** What is the shape around the C that is connected to N (assume C here is the central atom)?
**12e.** How many lone pairs of electrons are around the O atom in question 12c?
**12f.** How many lone pairs are around the N atom?
**12g.** How many valence electrons (total) are around the Lewis structure of glycine?
**12h.** Is glycine a polar or nonpolar molecule? Explain your answer.
**12i.** How many polar bonds are present in the structure of the glycine molecule?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3c6fee6f-4c42-45ae-a179-2e46b70b7779%2F4de5bb0b-2d91-4c17-b77a-a58c1a539793%2Fzhjt2z8_processed.jpeg&w=3840&q=75)
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