The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)

The “octet rule” in chemistry helps predict the types of bonds thatatoms will form. In general, an atom will be most stable if it fills itsouter shell of 8 electrons. Atoms with fewer than 4 valence electronstend to donate electrons and those with more than 4 valence electronstend to accept additional electrons; those with exactly 4 can do both.Using this rule, determine what category each of the followingelements falls into: N, S, C, P, O, H, Ca, Fe, and Mg. (You will needto work out the valence of the atoms.)

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter2: Chemistry Of Life

Section: Chapter Questions

Problem 10SQ: What kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins?...

See similar textbooks

Similar questions

What kinds of bonds often control the shape (or tertiary form) of large molecules such as proteins? a. hydrogen b. ionic c. covalent d. inert e. single
Discuss whether the following statement is correct: “An ionic bond can, in principle, be thought of as a very polar covalent bond. Polar covalent bonds, then, fall somewhere between ionic bonds at one end of the spectrum and nonpolar covalent bonds at the other end.”
In an ammonia molecule, one nitrogen atom (atomic number = 7; 1s² 2s²2p³) forms covalent bonds with three hydrogen atoms. Draw a diagram of an ammonia molecule. Show all valence electrons, lone pairs, molecular geometry, and partial charges (assume sp³ hybridization).
Which of these statements about the tertiary structure of a polypeptide is(are) untrue? You may select more than one answer. The tertiary structure will be maintained when the solvent is changed from pure water to aqueous acetic acid. O The tertiary structure is determined in part by the formation of disulfide bridges. Hydrogen bonding interactions are responsible for formation of secondary structure but not tertiary structure, O The tertiary structure is rigid and unchanging. O Charge-charge (electrostatic) interactions can be important in the tertiary structure.
Amino acids are the building units of proteins. These compounds contain at least one amino group and a carboxyl group. Glycine exists in three possible types, depending on the pH of the solution. Fully protonated: Dipolar ion: Completely ionized: pH 1.0; Predict which structure of glycine might be dominant at pH 7.0 and pH 12.0. The pKa value of the carboxyl group is 2.3 and the ammonium group is 9.6.Please explain.
The dihedral or torsion angles of polypeptide backbone, the allowed values of which are summarized by the Ramachandran diagram, refer to rotation of the following pair of bonds. Cα-N and Cα-R C=O and Cα-N C-N and Cα-C Cα-C and Cα-N Cα-R and Cα-C
:0-H-1--:N-H Hydrogen Bond Which statement best helps explain the formation of the hydrogen bond represented in the figure? A The oxygen has a partial positive charge, and the nitrogen has a partial negative charge. (B) The nitrogen has a partial negative charge, and the hydrogen attached to the oxygen has a partial positive charge.
The triple point of an element is at 75 torr and 125°C. This means that liquid is more dense than solid cannot exist at 1 atmosphere pressure cannot have a vapor pressure less than 75 torr cannot exist above 125 degrees Celsius What is the electron geometry (or electron arrangement) around an atom in a molecule or ion which is surrounded by three lone pairs of electrons and two single bonds T-shaped see-saw trigonal planar trigonal bipyramidal linear A red blood cell placed in pure water will swell because water moves from a higer osmotic pressure to a lower osmotic pressure the osmotic pressure is greater in the cell than in the water the osmotic pressure is the same in the cell and the water the somotic pressure is greater in the water than in the cell
Which of the following statements is correct regarding polar/nonpolar molecules? 1. Molecules comprised of nonpolar covalent bonds are likely to be hydrophilic 2. Polar molecules like sugar tend to dissolve in solutions of other polar molecules like water 3. Nonpolar molecules like sugar tend to dissolve in solutions of polar molecules like water 4. Polar covalent bonds tend to form between molecules that consist of two atoms of the same element, like oxygen gas (O2) or nitrogen gas (N2)
90% of our body is made of water. Use a water molecule to describe the relationship among all the following polar molecules, intramolecular and intermolecular forces, hydrophilic and hydrophobic interactions.
H :0: H- C;= C2 - C3 - C4 - N - H H H Give the approximate bond angle at each of the designated central atoms: note: Add five letters. C = C2 = C3 = C4 = N = a. 109.5° b. 120° C. 180° d. 90° е. 450
which of the bonds in the molecule below are polar. explain why.