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Atomic Structures Workshop for Chemistry Class - Interactive Periodic Table Session

Join today's chemistry class to learn about counting atoms, coloring the periodic table, and Mendeleev's invention. Be prepared with a pen and paper. Work on worksheets to identify elements and their atoms. Participants can explore Mendeleev's Periodic Law and learn about chemical groups in the periodic table. Have fun coloring and understanding the arrangement of elements!

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Atomic Structures Workshop for Chemistry Class - Interactive Periodic Table Session

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  1. January 13, 2016 • Today’s Schedule • Q/A • Correct Worksheet • Start Periodic Table • Coloring Periodic Table • Pass back test • Today you will need: • Pen/Pencil • Paper/ Notebook • Pencil Crayons if you have them

  2. Q/A • Break down the following compound to its elements and how many atoms of each element are there. • 3 H2 (CrO4) 2

  3. 3 H2 (CrO4) 2 • Hydrogen= 3 X 2 = 6 atoms • Cromiun= 3 X 1 X 2 = 6 atoms • Oxygen= 3 X 4 X 2 = 24 atoms

  4. Add up the marks • 1 point for each correct element • Worksheet out of /25 • Bonus mark for having question 10 correct Put the mark clearly in the upper right hand corner.

  5. Counting atoms worksheet- Marks • NH4NO3 • Nitrogen= 2 atoms • Hydrogen= 4 atoms • Oxygen=3 atoms • S2F2 • Sulfur= 2 atoms • Fluorine=2 atoms • Na2CO3 • Sodium= 2 atoms • Carbon= 1 atom • Oxygen= 3 atoms • CaF2 • Calcium= 1 Atom • Fluorine= 2 Atoms • NO2 • Nitrogen= 1 atom • Oxygen= 2 atoms • Al2(SO4)3 • Aluminum= 2 atoms • Sulfur = 3 atoms • Oxygen =12 atoms

  6. Counting atoms Worksheet (Marks) • CH4 • Carbon= 1 atom • Hydrogen= 4 atoms • Al(C2H3O2)3 • Aluminum= 1 atom • Carbon= 6 atoms • Hydrogen= 9 atoms • Oxygen= 6 atoms • (NH4)2Cr2O7 • Nitrogen= 2 atoms • Hydrogen= 8 atoms • Chromium=2 atoms • Oxygen=7 atoms • 10) Bonus MARK! • Calcium= 1 atom • Oxygen= 8 atoms • Carbon= 18 atoms • Hydrogen= 14 atoms

  7. THE PERIODIC TABLE AN INTRODUCTION

  8. INVENTION OF THE PERIODIC TABLE • DMITRI MENDELEEV invented this table in order to organize the elements • Not only are they organized, they are organized in a way that explains and predicts their physical and chemical properties

  9. MENDELEEV • Russian scientist played solitaire with the 64 elements known at the time • He first arranged them in order of increasing atomic mass • When an element started to repeat properties he had seen before, he started a brand new row

  10. His table:

  11. Mendeleev’s Periodic Law • If the elements are arranged according to their atomic mass, a pattern can be seen in which similar properties occur regularly.

  12. Testing his Periodic Law • Mendeleev had predicted that elements would be discovered to fill in the empty spaces in his periodic table • His predictions were found to be accurate • A century later, it is still used to summarize chemical facts

  13. Mendeleev Video

  14. The Groups on the Periodic Table

  15. GROUPS OF ELEMENTS • A set of elements in the same column (running up and down) are called a CHEMICAL GROUP or FAMILY • These elements have similar physical and chemical properties • They form similar kinds of compounds when they combine with other elements

  16. Class Work • Use the handout to colour the different groups of the periodic table. • If you don’t have any pencil crayons, you may borrow mine. • If you borrow mine, put them back after you are finished!

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