Molecular Structure PDF

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) U1-L4 Molecular Structure ) ) ) ) ) ) ) ) ) Intro ) ) ) ) ) ) ) ) ) STANDARD MS-PS1-1. Develop models to describe the atomic...

) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) U1-L4 Molecular Structure ) ) ) ) ) ) ) ) ) Intro ) ) ) ) ) ) ) ) ) STANDARD MS-PS1-1. Develop models to describe the atomic composition of simple molecules and extended structures. ) ) ) ) ) ) ) ) ) Intro ) ) ) ) ) ) ) ) ) ESSENTIAL QUESTION How do atomic structures determine the properties of a substance? ) ) ) ) ) ) ) ) ) Intro ) ) ) ) ) ) ) ) ) SUCCESS CRITERIA 1. I can explore how to classify elements and compounds. 2. I can investigate the structure of elements, covalent compounds, and ionic compounds. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) LANGUAGE BUILDING ACTIVITY ) ) ) ) ) ) ) Match A Match B 1. simplify A. just one B. to make easier 2. brittle C. carries heat or energy 3. conductor D. a solid with a repeating 4. individual molecular pattern 5. crystal E. easily broken ) ) ) ) ) ) ) ) ) Science ) ) ) ) ) ) ) ) ) NOW YOU SEE IT, NOW YOU DON´T Probe Motohiro felt chilled by the rainy afternoon. He decided to make a cup of hot tea. He let the tea leaves steep too long and the tea was bitter. Motohiro added some sugar to his tea to improve the flavor. After he stirred the sugar with the tea, he couldn’t see the sugar any longer. Which statement best describes what happened to the sugar? describes what happened to the sugar? ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) NOW YOU SEE IT, NOW YOU DON´T Science Probe 01 The sugar 02 The sugar molecules molecules disappeared. melted. 03 The atoms that 04 The sugar make up the sugar molecules mixed were destroyed. evenly with the tea ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ETP Encounter the Phenomenon WHY DO SOME SUBSTANCES DISSOLVE IN WATER, BUT OTHER SUBSTANCES DO NOT? ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PURE SUBSTANCE ELEMENT 01 02 COMPOUND ATOM 04 03 MOLECULE ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 01 ELEMENT Chapter 2 pure substance that cannot be separated into simpler substance by physical or chemical means. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 02 COMPOUND Chapter 2 a substance that contains two or more elements chemically combined in a fixed proportion. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 03 MOLECULE Chapter 2 two or more atoms that are held together by covalent bonds and act as a unit. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) 04 ATOM Chapter 2 pure substance that cannot be separated into simpler substance by physical or chemical means. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PERIODIC TABLE OF ELEMENTS A great deal of Understanding the information about an organization and plan of element can be the periodic table will help gathered from its you obtain basic position on the periodic information about each of table. the 118 known elements. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) METALS DEFINITION EXAMPLES Metals appear to the left of the dark ziz-zag line on the periodic table. Most metals are solid at room temperature. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PROPERTIES OF METALS LUSTER MALLEABLE 01 Metals have luster. This means they 03 metals can be hammered into are shiny. sheets DUCTILE CONDUCTORS 02 metals can be drawn into wire. 04 Metals are good conductors of electricity and heat ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PROPERTIES OF METALS MELTING PT. REACTIVITY 05 Metals have a high melting point 07 A chemical property of metal is its reaction with water and oxygen. This results in corrosion and rust. VERY DENSE VALENCE 06 They are also 08 Most metals have 3 or less valence very dense. electrons. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) NON-METALS DEFINITION EXAMPLES Nonmetals occur to the right of the dark zig-zag on the periodic table. Although Hydrogen is in family 1, it is also a nonmetal. Many nonmetals are gases at room temperature. ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) PROPERTIES OF NONMETALS DULL VALENCE ELECTRON 01 Nonmetals do not have luster; they 03 Nonmetals have 5 or more valence electrons and therefore are dull. usually gain electrons in chemical bonds. DUCTILE INSULATORS 02 Nonmetals are brittle so they 04 This is why they are poor conductors of heat and electricity. break easily.  Thank You ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) )