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Physical Science Unit 3: Periodic Table and Bonding Day One Classifying Matter
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UNIT 3 PERIODIC TABLE and BONDING
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Take Notes in Notebook http://www.gpb.org/chemistry- physics/chemistry/202 http://www.gpb.org/chemistry- physics/chemistry/202 Do worksheet on this page together
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Types of Matter Element - _______________ substance _______________ kind of _______________ − represented by ______________ or ______________ letter symbol − example: ______________ (___) Compound -______________ or more ______________ ______________ combined − represented by ______________ ______________ − example: ______________ (____) − H 2 O ______________ into _____________ _________ and ______________ _________. − ______________ in same ______________ Mixture - ______________ or more substances ______________ ______________ do not ______________ in same ______________ heterogeneous mixture - not _________ homogeneous mixture (solution) - _________ alloy - _________ of two or more _________ Pure ______________ are ______________.
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Take Notes in Notebook http://www.gpb.org/chemistry- physics/chemistry/202 http://www.gpb.org/chemistry- physics/chemistry/202 Do worksheet on this page together
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Solvents and Solutes Solvents and solutes can be any state of matter. A solution is another name for homogeneous mixtures that are stable. In salt water, for instance, the salt stays dissolved. – A solution cannot be separated by filtration. Figure 15.6 A solution cannot be separated by filtration. The small size of the solute particles allows them to pass through filter paper.
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Suspensions Suspensions are heterogeneous because at least two substances can be clearly identified. – Unlike solutions, suspensions can be separated by filtration. Figure 15.14 A suspension is a heterogeneous mixture. Suspended particles can be removed by filtration. Comparing And Contrasting How does the filtration of a suspension compare with the filtration of a solution?
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Worksheet: Classifying Matter
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Physical Science Unit 3: Periodic Table and Bonding Day Two Classifying Matter and Intro to PT
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Take Notes http://www.gpb.org/chemistry-physics/chemistry/203 Separating Mixtures The components of a mixture may be separated based on the physical properties of: __________________ __________________ (An instrument that uses this property to separate mixtures when tiny solid particles are dissolved in a liquid is called a __________________.) Some techniques used to separate the components of a mixture are: __________________ -- used to separate liquids and solids __________________ -- used to separate solutions
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Review WS (from GPB 202) Classify each of the following as an element (E), compound (C), homogeneous mixture/solution (S), or heterogeneous mixture (HE). chocolate chip cookie _____ oxygen gas _____ salt water _____ taco _____ gold _____ carbon dioxide _____ water _____ kool aid _____ table salt _____ muddy water _____ potassium _____ brass _____ graphite _____ glass _____ air _____
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Worksheet: Classifying Matter
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Periodic Table
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Periodic Table (Flash)
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Physical Science Unit 3: Periodic Table and Bonding Day Three PT Cheat Sheet and Notes
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1 2 3 4 5 6 7 6 7
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 B Si As Ge SbTe PoAt metalsnonmetals
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 B Si As Ge SbTe PoAt metalsnonmetals Hg Br
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 B Si As Ge SbTe PoAt metalsnonmetals Hg Br H He NOF Cl Ne Ar Kr Xe Rn
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12345671234567 6767 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 B Si As Ge SbTe PoAt metalsnonmetals Hg Br H He NOF Cl Ne Ar Kr Xe Rn Alkali Metals Alkaline earth Metals Transition Metals HalogensNoble Gases Lanthanides Actinides
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Periodic Table Definitions Period – horizontal row on P.T. There are 7 of them. Is equal to number of energy levels Group – Also called family. Vertical column on the P.T. There are 18 of them. Last number for 1, 2, 13-18 indicated number of valence electrons.
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Periodic Table Definitions Metals – Good conductors of heat and electricity. Located on the left of the zigzag line on P.T. Nonmetals – Poor conductors of heat and electricity. Often brittle. Located on the right of the zigzag line on the P.T. Metalloids – Properties are inbetween metals and nonmetals. Good semi-conductors of electricity. Located along the zigzag line.
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Periodic Table Groups Alkali metals – Group 1 metals. VERY reactive. Only found as compounds in nature. Alkaline earth metals – Group 2 metals. Reactive; only found as compounds in nature. Not as reactive as group 1. Transition metals – Metals in Groups 3-12. Lots of variation in properties. Generally don’t talk about these.
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Periodic Table Groups Halogens – Group 17 nonmetals. Means “Salt former”. Very reactive. Noble gases – Group 18. Inert (means “unreactive”). Do not form compounds. Lanthanides and Actinides – placed under P.T. to keep P.T. short.
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GPB http://www.gpb.org/chemistry- physics/chemistry/402 http://www.gpb.org/chemistry- physics/chemistry/402
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Valence Electron An electron in the outermost energy level
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Octet Rule Atoms gain, lose or share valence electrons so that there are EIGHT valence electrons
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Energy Level Areas where electrons exist. Higher energy levels are far from nucleus. Can be 7 or more. 123
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IONS Ions are atoms that have gained or lost electrons, and thus have a CHARGE!
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Metal IONS Metals tend to LOSE electrons and form a positive charged ION, called a CATION. – Cations are positive charged ions.
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Nonmetal IONS Nonmetals tend to GAIN electrons and form a NEGATIVE charged ION, called an ANION. – Anions are negative charged ions.
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Physical Science Unit 3: Periodic Table and Bonding Day Four Intro to PT and Bohr Models
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Valence Electron An electron in the outermost energy level
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Octet Rule Atoms gain, lose or share valence electrons so that there are EIGHT valence electrons
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Energy Level Areas where electrons exist. Higher energy levels are far from nucleus. Can be 7 or more. 123
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IONS Ions are atoms that have gained or lost electrons, and thus have a CHARGE!
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Metal IONS Metals tend to LOSE electrons and form a positive charged ION, called a CATION. – Cations are positive charged ions.
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Nonmetal IONS Nonmetals tend to GAIN electrons and form a NEGATIVE charged ION, called an ANION. – Anions are negative charged ions.
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GPB http://www.gpb.org/chemistry- physics/chemistry/402 http://www.gpb.org/chemistry- physics/chemistry/402
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Glencoe WS: The Periodic Table
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Physical Science Unit 3: Periodic Table and Bonding Day Five Intro to Bonding
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Chemical Bond Definitions Chemical bond – Force that holds atoms together in a compound
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Chemical Bond Definitions Ionic bond – forms when valence electrons are transferred from a metal to a nonmetal. Properties of ionic bonds: – High melting and boiling points (most are solids at room temperature) – Hard (not easily crushed) – Conduct electricity as liquid or dissolved in water Na + ClNa + Cl + ¯
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Chemical Bond Definitions Covalent Bond – Electrons are shared between two nonmetals, forming a molecule. Properties of Covalent Bonds: – Lower (than ionic) melting and boiling points (can be solid, liquid or gas at room temp) – Can be brittle (easy to crush) – Do not conduct electricity (except acids DO)
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Chemical Bond Definitions Metallic Bond – occurs in metals. Valence electrons are shared by ALL atoms, forming a “sea of electrons”. Properties of metallic bonds – Good conductors of electricity when in solid form – Typically high melting and boiling points (most are solid at room temp. Mercury is the exception.) – Luster (shiny) – Malleable (shapeable and form into thin sheets) – Ductile (can be drawn into wires)
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Writing Ionic Formula Chemical formula – tells what elements and how many make up a compound.
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GPB http://www.gpb.org/chemistry- physics/chemistry/501 http://www.gpb.org/chemistry- physics/chemistry/501
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Physical Science Unit 3: Periodic Table and Bonding Day 7 Intro to Bonding
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Chemical Bond Definitions Chemical bond – Force that holds atoms together in a compound
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Chemical Bond Definitions Ionic bond – forms when valence electrons are transferred from a metal to a nonmetal. Properties of ionic bonds: – High melting and boiling points (most are solids at room temperature) – Hard (not easily crushed) – Conduct electricity as liquid or dissolved in water Na + ClNa + Cl + ¯
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Chemical Bond Definitions Covalent Bond – Electrons are shared between two nonmetals, forming a molecule. Properties of Covalent Bonds: – Lower (than ionic) melting and boiling points (can be solid, liquid or gas at room temp) – Can be brittle (easy to crush) – Do not conduct electricity (except acids DO)
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Chemical Bond Definitions Metallic Bond – occurs in metals. Valence electrons are shared by ALL atoms, forming a “sea of electrons”. Properties of metallic bonds – Good conductors of electricity when in solid form – Typically high melting and boiling points (most are solid at room temp. Mercury is the exception.) – Luster (shiny) – Malleable (shapeable and form into thin sheets) – Ductile (can be drawn into wires)
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Writing Ionic Formula Chemical formula – tells what elements and how many make up a compound.
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GPB http://www.gpb.org/chemistry- physics/chemistry/501 http://www.gpb.org/chemistry- physics/chemistry/501
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Physical Science Unit 3: Periodic Table and Bonding Day Nine Writing Ionic Formulae
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GPB http://www.gpb.org/chemistry- physics/chemistry/601 http://www.gpb.org/chemistry- physics/chemistry/601
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Day 10 Binary Ionic Compounds
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Day 11 Tertiary Ionic Compounds (Polyatomic Ions)
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Day 12 Binary Covalent Compounds
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