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Published byVirgil Higgins Modified over 9 years ago
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All roads lead to the Elements
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Creator: Dmitri Mendeleev Early periodic table: Arranged according to Avg. Atomic Mass Contained 63 elements Predicted 3 yet-to-be elements Left spaces for undiscovered elements
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What do you do to a wrinkled shirt?
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Henry Moseley – 1913 Learned that each element has a specific number of protons Developed modern periodic table Based upon Protons
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Periods: the horizontal rows on the periodic table (left to right) Groups/Families: the vertical columns on the periodic table (up and down)
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Periods = Energy Level Sub Levels labeled (s, p, d, & f)
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Mickey’s pal
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Valence electrons: electrons in the outermost shell Octet Rule: the stable arrangement for all elements is to have 8 valence electrons
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Group 1: Alkali Metals Group 2: Alkaline-Earth Metals Group 3-12: Transition Metals Group 17: Halogens Group 18: Nobel Gases
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Group 1: Alkali Metals Soft Shiny Has 1 Valence electron Highly reactive
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Group 2: Alkaline-Earth Metals Reactive (not as reactive as Alkali Metals) 2 valence electrons
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Mr. Mony’s enemy
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Group 3-12: Transition Metals Can have more than 1 oxidation number Metallic Wide-range of uses Iron, Cobalt, Copper, and Manganese use in your body Copper for electrical wires Gold, Silver, Platinum in jewelry
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Group 17: Halogens Very Reactive Have 7 Valence electrons Tend to find in compounds
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Name of a goofy convict
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Group 18: Noble Gases 8 Valence electrons Unreactive
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What a dog does with a bone?
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Oxidation number: a number used to indicate how many electrons will be gained or lost Ag (+1), Zn (+2), Cd (+2) Ion: a charged atom
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Police
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Metalloids: B, Si, Ge, As, Sb, Te, Po (have characteristics of both metals and nonmetals) Metals: shiny, malleable, ductile, good conductors Non-metals: primarily gases, poor conductors
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Atomic Radii- distance from the nucleus to the outermost stable electron Electronegativity- ability of an atom to attract electrons and form a chemical bond Ionization Energy- the energy needed to remove an electron Ionic Radii- distance from the nucleus to the outermost electron in an ion Increases moving down the columns and increases right to left Increases moving up the columns and increases left to right (Noble Gas family has 0 electronegativity) Increases moving up the columns and increases left to right Increases moving down a family (Noble Gas Trick)
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Extinct
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Which group/family will not bond with any other elements?
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How many valence electrons does Phosphorus have?
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Which element is the most electronegative?
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To follow the octet rule how many valence electrons do all elements want?
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How many valence electrons does Calcium have?
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Family with 7 valence electrons and highly reactive?
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What is the oxidation number for Oxygen?
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Which element is more metallic Ag or Ge?
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Imitation Diamond
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