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Quiz: Jan 11

Which elements are most active in the non-metals section? What color represents the metals? List three of the noble gases. List three alkali metals. List three alkaline earth metals. upper right corner of the periodic table, Group 17 (Close to F). blue He, Ne, Ar, Kr, Xe, or Rn

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Quiz: Jan 11

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  1. Which elements are most active in the non-metals section? What color represents the metals? List three of the noble gases. List three alkali metals. List three alkaline earth metals. upper right corner of the periodic table, Group 17 (Close to F). blue He, Ne, Ar, Kr, Xe, or Rn Li, Na, K, Rb, Cs, Fr Be, Mg, Ca, Ba, Ra Quiz: Jan 11

  2. Schedule for the Week of Jan 10, 2005 • I am checking for • Lab 16: Prelab and summary introduction. • Honor’s finish Lab 11 and turn in as soon as possible. • Turn in Index Cards • Yellow = metal • Green = metalloid • Pink = nonmetal • Test on Chapter 6 Wednesday? • Do Lab 16 TODAY, instead of Petri dishes we will use test tubes. Watch glass can be used in place of Petri-dish lid. • Notebook Turn in Schedule: (new rubric) • T 4th W 8th Th 5th F 11th following M: 10th

  3. What should be in your notebook? • HW through HW 24 • Outline and sentences through C10 • Notes on student presentations and class notes. (Honor’s – class notes only)

  4. Data Table: Lab 16

  5. Data Table 2 Copy the data table onto an index card. Put your names on it. You will be graded on observations and clean-up!

  6. In your notebook • Locate where on the periodic table you can find metals, nonmetals and metalloids. • List some properties of each. Blue = metals Pink = metalloids Yellow = nonmetals (except Hydrogen) metals = ductile, malleable, shiny, conducts heat and electricity reacts with oxygen to form bases. Metalloids =intermediate between acids and bases. nonmetals = dull, brittle (or gaseous), insulators, reacts with oxygen to form acids or acid anhydrides.

  7. In your notebook • Locate which metals will be most chemically active • Locate which nonmetals will be most chemically active Lower Left corner (Fr) will be most chemically active because the electrons are loosely held, and only one or two electrons must be lost to obtain a stable octet. Upper right corner (F) will be most chemically active because the new electrons will be close to the positively charged nucleus, and will be held tightly in the newly formed stable octet.

  8. In your notebook • Locate which atoms will be the largest • Locate which ions will increase in size the most • There is a helpful chart on page 252 of our book. • p 83 in 1974 Modern Chemistry • p 126 in 1986 Modern Chemistry Lower Left corner (Fr) will be largest atoms because they have the most energy levels AND the most shielding effect. (Fr = 280 pm) P 252 TEXT Nonmetal ions with a very negative charge will have the largest ions because of the repulsion between the electrons. (C4- = 260pm compared to C = 77 pm)

  9. Data Table Page 79

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