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Module 5 The Chemistry of Life
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Name the 5 kingdoms of the 5 Kingdom Classification System Monera (Bacteria) Protista Fungi Plantae Anamalia We are NOT starting a new kingdom, but discovering the Chemistry behind “Life”.
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Module 5 Outline Terms 1.Atoms – The Basic Building Blocks of Life 2. Matter – Anything that has mass and takes up- space Example Matter ____________________ Not matter _________________ 3. Mass – Have mass, then you have weight
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Remember???? What characteristic is used first to start classifying life? 1. Size 2. Type of energy consumed 3. Reproduction style 4. Cell type (prokaryotic or eukaryotic)
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What Characteristic is used first to classify matter? 1. Size 2. Color 3. Electrical charge 4. Atoms
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Page 126 Figure 5.1 is ONLY a MODEL of a Helium Atom Questions: Why is this only a model? Do we have any “real” pictures of atoms and their structures?
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Outline Continued 4. Model – A explanation or representation of something that cannot be seen.
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ProtonNeutronElectron Oxygen 8 protons 8 neutrons 8 electrons +0– Hydrogen 1 proton 1 electron Everything is made of matter Matter is made of atoms
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Outline Continued CHARGE LOCATION Proton PositiveNucleus Neutron NoneNucleus Electron Negative Circulates around Nucleus Parts of Atom
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C Different kinds of atoms = elements H ON PSNa K Mg Ca
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Outlined Continued Why count… # Protons = # Electrons # Neutrons = affects mass, not charge # Electrons = # Protons
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# of P, N, & E change the properties Helium = 2 N, 2 P, 2 E = GAS Carbon = 6 N, 6 P, 6 E = SOLID Oxygen = 8 N, 8 P, 8 E = GAS Electrons: Outer layer Reactive to # of ELECTRONS
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What element is this? What is your reasoning?
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On Your Own 5.1 Why called the “Planetary Model”? 5.2 What determines an atom’s properties? 5.3 An atom with 13 electrons has how many protons? * You will show your understanding when completed.
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1.Draw a planetary model of a helium atom with 2 electrons, 2 protons and 2 neutrons. Label the parts of the atom in their correct location.
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2.Why are electrons responsible for the majority the properties atoms demonstrate? HINT: How are neutrons different from electrons? How are protons different from electrons?
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3.If an atom has 3 protons… Are you able to determine the # of neutrons or electrons? Protons
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Study Guide 2. Where are the protons, neutron, and electrons located. 3. What (p,n or e) determine the vast majority of an atom’s characteristics. *Replace quiz score with this score.
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Today we are going to learn… 1. the differences between elements 2. what the “2” in H 2 0 mean 3. the 6 important biological elements and their abbreviations. 4. to compare and contrast atoms called “helium-3” and “helium-4”
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6. Element – Collection of atoms with same # of PROTONS. Elements Pg. 128 # of Protons = # of Electrons… Right? Are protons and neutrons ALWAYS equal? Don’t Write
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Oxygen Compound H2O (2) Hydrogen atoms (1) Oxygen atom SO4 (1) Sulfur atom (4) Oxygen atoms Element O-17 Oxygen-17 17 O
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Element Names In your notes, write the Abbreviation and your guess at the elements name
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