1. (Tue) We will be starting daily warm up questions tomorrow. How do you complete and grade the daily warm up question (6 parts)? (5 min / 0 pts)

2. 1. Use 1 sheet of paper for each week’s questions 2. Work together in your lab groups to discuss and answer the question on the screen in the time listed 3. When time is up, the bell will ring – stop writing. 4. Trade papers with someone at your table or nearby to grade the paper 5. Using a different color pen/pencil show who corrected the question – “CB YI” which stands for “corrected by (your initials)” 6. Grade the question and put the number of points earned next to your initials (Tue) We will be starting daily warm up questions tomorrow. How do you complete and grade the daily warm up question (6 parts)? (5 min/0pts)

3. (Wed) What is the difference between a molecule and a compound? How many atoms does it take to make a molecule or compound?(5 min / 4 pts)

4. Difference? Molecule: Same elements Compound: Different elements How many atoms? 2 or more atoms

5. (Thu) In the table below are listed several atomic numbers and masses. Complete the table by filling in the missing information (5 min / 8 pts) SymbolAtomic # Atomic Mass # Electrons # Neutrons Be49.01 Mn2530 Si28.0914 Pb82125

6. (Thu) In the table below are listed several atomic numbers and masses. Complete the table by filling in the missing information (5 min/8 pts) SymbolAtomic # Atomic Mass # Electrons # Neutrons Be49.01 Mn2530 Si28.0914 Pb82125 45 5525 14 82207

7. (Fri) There are 2 trends in the Atomic Radius in the periodic table. What are these trends and why do they go this way? (5 min / 8 pts)

8. Trend:Across (Fri) There are 2 trends in the Atomic Radius in the periodic table. What are these trends and why do they go this way? (5 min/8 pts) Down: Radius gets smaller Radius gets bigger Why:Electrostatic Forces More (+) charges = more attracting force = smaller More (-) charges = more repelling force = more shells Across: Down:

9. End of Week Procedures 1.Add up all the points you got this week 2.Put the total number of points out of 20 points you earned at the top of your page (no total, lose 5 points) 3.List any dates you were absent or tardy (and why) 4.Make sure your name and period # is on the top of the page (no name, no credit) 5.Turn in your papers

10. (Thu) There is a trend in the Electronegativity as you go from top to bottom in a single column of the period table. What is this trend and why does it go this way? (5 min / 8 pts)

11. Trend: (Thu) There is a trend in the Electronegativity as you go from top to bottom in a single column of the period table. What is this trend and why does it go this way? (5 min/8 pts) Electronegativity gets smaller Why:Electrostatic Forces Larger radius = less force = lower electronegativity More charge = more force = higher electronegativity Size has bigger effect Lower Electronegativity

12. (Fri) A very common compound used every day is salt (NaCl). This material is made of sodium and chlorine. What are the group names and group numbers for these two elements? (5 min / 8 pts)

13. Group NameGroup Number Na Cl Alkali Metals Group 1 or 1A Halogens Group 17 or 7A (Fri) A very common compound used every day is salt (NaCl). This material is made of sodium and chlorine. What are the group names and group numbers for these two elements? (5 min/8 pts)