Organize+the+Elements

Group work:

__Pre-Activity__: One fact can be organized in one dimension (horizontally). Two facts must be organized in two dimensions. (Both horizontally and vertically)

If done correctly, no group member will have to cut on more than 3 lines. 1. Cut on a line to separate the squares into two groups. Hand the halves to two group members. 2. Both members will cut on a line to separate the squares into two groups. Hand a half to another group member. 3. Everyone cut on two lines to separate all the squares. Don't waste time trimming the squares.

Analyzing Data: finding patterns in information: __First__, organize the squares horizontally by the top fact on the squares. __Second__, keeping the top facts in order, also organize the squares vertically by the second fact on the squares. The third fact on the square relates to weather. 1. What is the weather at the start, middle, and end of the seven columns? 2. By what time scale does the weather pattern repeat? 3. The weather pattern is periodic. What does periodic mean? Document contains three sets. Use what was learned in the pre-activity in the main activity below.

__ Main Activity: __ ORGANIZE THE ELEMENTS Finding Patterns in Information: Use patterns in the information on each square to organize the elements. A. Organize the squares horizontally by the pattern found in the top fact on each square. B. Look across the squares at the second fact. Look for a repeating pattern. What pattern did you find? C. Keeping the first facts in order, re-organize the squares using the pattern you found in the second set of facts. D. Follow the patterns in the facts to arrange all the squares. E. Under line: metals with blue, semimetals with yellow, nonmetals with green, and inert gases with orange. (The squares should fit on 1.5 pages in a landscape orientation without overlapping.)

Include the subject of the question in your answer. (Complete sentences) 1. Where should squares 26 and 29 go? In column does the second place place them? In what row does the first fact place them? 2. Predict where two elements are missing in your table. On the two squares provided, write the facts that should go on these squares using the squares above and below them. Make your best prediction of the atomic masses for both squares by looking at how mass changes one square to the next for nearby squares. 3. Make a square for element 1. Element 1 has one valence electron. Tell where is should go in the table and why? 4. Make a square for element 2. Element 2 is “Totally nonreactive. Tell where is should go in the table and why? 5. Where would you place the element with an Atomic mass of 83.8? Why? 6. Where would you place the element with an Atomic mass of 39.098? Why? 7. Looks at the periodic table and determine where squares 60 and 92 go. What group is each in? 



1 valence electron Atomic Mass 1.008 Highly reactive Odorless gas Very flammable Excellent conductor H2O, HCl || 3 protons 1 valence electrons Atomic Mass 6.941 Metal Highly reactive Soft Reacts with water Li2O, HCL || 5 protons 3 valence electrons Atomic Mass 10.81 Semimetal Reactive to slightly-reactive Slightly brittle B2O__3__, BCl3 || 7 protons 5 valence electrons Atomic Mass 14.007 Nonmetal Non-reactive to slightly-reactive Gas NH3, NCl__3__ || 5 valence electrons Atomic Mass 30.974 Nonmetal Extremely reactive White or red solid PH3, PCl5 || 17 protons 7 valence electrons Atomic Mass 35.453 Nonmetal Extremely reactive Gas HCl, NaCl, CaCl2 || 19 protons 1 valence electrons Atomic Mass 39.098 Metal Highly reactive Soft Reacts with water K2O, KCl || 31 protons 3 valence electrons Atomic Mass 69.72 Metal Slightly reactive Reacts with Al Ga2O3, GaCl3 || Valence of 2 or 3 Atomic Mass 55.847 Metal Not very reactive Good conductor FeO,  Fe 2 O 3,, Fe 3 O 4 FeCl 2, FeCl 3 || 36 protons 8 valence electrons Atomic Mass 83.80 Inert Gas Totally unreactive except to superman || 34 protons 6 valence electrons Atomic Mass 78.96 Nonmetal H2Se, SeCl2 || 32 protons 4 valence electrons Atomic Mass 72.59 Semimetal Brittle Slightly reactive GeO2, GeCl4 || 4 valence electrons Atomic Mass 28.086 Semimetal Brittle Slightly reactive SiO2, SiCl4 || 12 protons 2 valence electrons Atomic Mass 24.305 Metal Reactive Flammable MgCl2, MgO || 10 protons 8 valence electrons Atomic Mass 20.179 Inert gas Totally unreactive Odorless gas || 8 protons 6 valence electrons Atomic Mass 15.999 Nonmetal Highly reactive Odorless gas H2O, CO2 || 7 valence electrons Atomic Mass 18.998 Nonmetal Extremely reactive Gas HF, NaF, CaF2 || 11 protons 1 valence electron Atomic Mass 22.99 Metal Highly reactive Soft Reacts with water Na2O, NaCl || 13 protons 3 valence electrons Atomic Mass 26.982 Metal Can be Reactive Reacts with oxygen to form a protective layer Al2O3, AlCl3 || 6 protons 4 valence electrons Atomic Mass 12.011 Nonmetal Reactive to slightly-reactive CO2, CCl4 || 5 valence electrons Atomic Mass 74.922 Semimetal Fairly Reactive AsH3, AsCl3, AsCl5 || 35 protons 7 valence electrons Atomic Mass 79.904 Nonmetal Very Reactive Liquid at room temp. HBr, NaBr, CaBr2 || 29 protons Valence of 2 or 3 Atomic Mass 63.546 Metal Not very reactive Good conductor CuCl2, Cu2O || 4 protons 2 valence electrons Atomic Mass 9.0122 Metal Reactive Fairly hard Excellent conductor BeO, BeCl2 || 2 valence electrons Atomic Mass 40.08 Metal Reactive Flammable CaCl2, CaO || 18 protons 8 valence electrons Atomic Mass 39.948 Inert gas Totally nonreactive Odorless gas || 16 protons 6 valence electrons Atomic Mass 32.06 Nonmetal Reactive Brittle solid Insulator H2S, H2SO4, SCl2 || 2 protons 2 valence electrons Atomic Mass 4.003 Nonmetal Totally unreactive Odorless gas Inert gas || Previous Version. Square Facts Extension Add another row, but leave one element out.
 * 1 protons
 * 15 protons
 * 26 protons
 * 14 Protons
 * 9 protons
 * 33 protons
 * 20 protons