Chapter 2 The Nature of Molecules and the Properties of Water 2011

Chapter 2 The - Chapter 2 The Nature of Molecules and the Properties of Water earning Objectives 1 To understand the elemental composition of

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Unformatted text preview: Chapter 2- The Nature of Molecules and the Properties of Water earning Objectives 1. To understand the elemental composition of living organisms 2. To understand the various types of chemical bonds 3. To understand the importance of water to living organisms 4. To understand about pH and the importance of buffers ajor Elements of Life (2-60 atoms %) ydrogen* (H)- arbon (C)- xygen (O)- itrogen* (N)- race Elements ( 0.02-1.0 atoms %) odium* (Na)- agnesium* (Mg)- hosphorus* (P)- ulfur* (S)- hlorine* (Cl)- otassium* (K)- alcium* (Ca)- The Chemicals of Life ltra-Trace Elements (0.001-0.01 %) oron* (B)- Iron* (Fe)- obalt* (Co)- olybdenum* (Mo)- Iodine* (I)- asic Chemistry Review omposition of Atoms Protons- Neutrons- Electrons- tomic Number- ass Number- Isotopes- Electron shells (K, L,M,N,O,P,Q) = 7 energy levels Electron orbitals- s, p, d, f The “Octet Rule” The Arrangement of Electrons Page for Notes...
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This note was uploaded on 02/12/2012 for the course BIOL 104 taught by Professor Dr.nevinaspinwall during the Fall '11 term at MO St. Louis.

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Chapter 2 The - Chapter 2 The Nature of Molecules and the Properties of Water earning Objectives 1 To understand the elemental composition of

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