1 / 26

QOTD 10/7/13

QOTD 10/7/13. Learning target: by the end of the period, you should be able to list several trends on the periodic table FIRST , pick up a completed card sorting table from the front counter! Then do Chem Catalyst p.37 while I check HW (Qs p. 34-36)

anisa
Download Presentation

QOTD 10/7/13

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. QOTD 10/7/13 Learning target: by the end of the period, you should be able to list several trends on the periodic table FIRST, pick up a completed card sorting table from the front counter! Then do Chem Catalyst p.37 while I check HW (Qs p. 34-36) For the first question, see the table on page 33. For the question, see the card sorting table that you just picked up.

  2. QOTD answers • First question: he put Cu in group 1 (not where you will put it!!!) • Second question: you would put it in between Ca ( 40.1) and Ga(69.7) • You would need to make ANOTHER column! • Now look where Cu is placed on the REAL periodic table!

  3. ANSWERS to Lesson 1.2.4 Questions Page 34-36

  4. 1. What characteristics did you use for sorting the cards? # of spokes, mass, color

  5. 2. What patterns appear in your arrangement? List at least three. • As you go down a group, the # of spokes stays the same. • As you go across a row, the # of spokes goes up by one. • As you go across a row or down a group, the mass gets larger • As you go ACROSS a row, the size gets smaller • As you go DOWN a group the size gets bigger

  6. 3. Where did you put H and He? What was your reasoning for their placements? On the far left and far right. # of spokes! (hydrogen) Unreactive (helium)

  7. 4. Did you notice any cards that didn’t quite fit, or that seemed out of order? Te is heavier than I but iodine comes after tellurium. We will explain this in the next unit. It has to do with something called “neutrons”.

  8. Making Sense Qs: Look @ the cards you have arranged—where does germanium belong in the table? Which card seems to be the most accurate to you? What is your reasoning?

  9. What would you add to the three empty corners to complete the card?

  10. Check-in: Which of the following elements would you find in the same group on the periodic table? Explain your thinking. Silvery, React slowly or don’t react with water, ___Cl2

  11. Check-in: Compare the pairs of elements below. Circle the pair that would have the most similar properties. Explain your reasoning. Na and Rb Na and Mg O and Ne They are in the same group (vertical column)

  12. Agenda/Activities • Now do Qs 1-13 on p. 37-38 • We will go start going over these in 15-20 minutes. • HW: write this down now! • Check your answers online to any of the Qs we don’t get to today. • Also do check in question on p. 39 • And read p. 39 to the top of 41 (DON’T do the Qs!)

  13. ANSWERS to Lesson 1.2.5 Activity Questions

  14. 1. Make a list of as many patterns as you can find from the card sort poster that occur horizontally. • elements get smaller • # of spokes goes up by 1 • atomic mass goes up • reactivity goes down then up • start as solids—end as gases.

  15. 2. Make a list of as many trends as you can find from the card sort poster that occur vertically. • elements get larger • # of spokes = • atomic mass goes up • Left side: reactivity goes up as you go down • Right side: reactivity goes down as you go down

  16. 3. Which trend or pattern does each of the following diagrams describe? Size (as you go down, atoms get larger) # of spokes (as you go across, # of spokes increases) Reactivity

  17. 4. Where are the metals located on the periodic table? The nonmetals? Metals: Left of the zig-zag Non-metals: Right of the zig-zag

  18. 5. Is copper, Cu, a metal or a nonmetal? Explain your thinking. A metal—it’s on the left side of the zig-zag.

  19. 6. The elements inserted into the card sort from Mendeleev’s table are called transition elements. Do you expect these elements to be solids, liquids or gases? Explain. Solids—they are sandwiched between other solids.

  20. 7. Where are most of the gases located on the periodic table? On the far right side.

  21. 8. Is thallium, Tl, a solid, liquid, or gas? Solid.

  22. 9. In what areas of the periodic table do you find the most highly reactive elements? Lower left, upper right (besides the last column)

  23. 10. How would you expect cesium, Cs, to react with water? Explain your reasoning. Explode on contact with water—the other elements in its group are also highly reactive with water.

  24. 11. Find the element with the atomic weight 137.3. If there were a card for this element, what would it probably say in the lower left corner? Reacts violently with water.

  25. Place the following in order of most reactive to least reactive. rubidium, Rb neon, Ne calcium, Ca silicon, Si Rb, Ca, Si, Ne

  26. Elements combine to form compounds. For each of the compounds listed below, specify whether two metals, a metal and a nonmetal, or two nonmetals were combined. NaCl, sodium chloride (table salt) HC2H3O2, acetic acid (vinegar CuSn, copper tin alloy (bronze) Metal & Non-metal Non-metals Metals

More Related