BIOL 2100 Lecture Notes - Lecture 2: Van Der Waals Force, Chemical Polarity, Electronegativity
Document Summary
Based on sections 2. 3, 3. 1, and 3. 2 of campbell biology (10. Ionic bonds are based on the attraction between 2 oppositely charged ions th edition) Seen the least in biology because water dissolves ionic bonds. Ions are atoms that have lost 1 or more electrons and are now charged. They form because atoms want stability by means of a full valence shell. Physiological conditions are also known as body conditions that can affect bonds (examples: temperature, ph, etc. The human body"s conditions make it easier to dissociate ionic bonds because water is polar. Nonpolar covalent bonds form for the same reason that ions form (to fill the valence shell) These bonds are strong and not readily disrupted. Polar covalent bonds also form to fill the valence shell. Sharing of electron pairs is unequal, thus the charge distribution is unequal. (water is an example all the oxygen atoms are slightly negatively charged, all the.
