(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)

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 listed3. When time is up, the bell will ring – stop writing.

4. Trade papers with someone at your table or nearby to grade the paper5. 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)

(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)

(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)

Difference?

Molecule: Same elements

Compound: Different elements

How many atoms?

2 or more atoms

(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)

Symbol Atomic #

Atomic Mass

# Electrons

# Neutrons

Be 4 9.01

Mn 25 30

Si 28.09 14

Pb 82 125

(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)

Symbol Atomic #

Atomic Mass

# Electrons

# Neutrons

Be 4 9.01

Mn 25 30

Si 28.09 14

Pb 82 125

4 5

55 25

14 14

82 207

(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)

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:

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

(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)

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

(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)

Group Name Group 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)