BIOL 1201 Lecture Notes - Lecture 1: Isomer, Sodium Hydroxide, Grou
7 Sep 2015
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Document Summary
Characteristics of living systems: reproduction*, response to environment, levels of organizations*, evolve/adapt, must have on cell, growth and development*, energy use** Valence: protons and neutrons in nucleus, electrons orbiting nucleus, the # of electrons that need to be gained/lost to fill outer shell of electrons, describes why elements behave they way that they behave, also predicts # of bonds an atom will form, valence electrons, the electrons in the outermost shell, shells. What determines the polarity of a molecule: type of bond/s within a molecule, chemical bonds, form when atoms gain and lose or share electrons, they are the result of electrical attraction between atoms, form when atoms completely gain and lose electrons, strongest bonds when dry. Properties of water (sticks to itself) & adhesive (sticks to other things: cohesive, high specific heat, high heat of vaporization, less dense as a solid than a liquid, good solvent for polar molecules.
