Hello,
Wanted to let you know that I went back to the resource room and this time Star was really helpful and nice to me. I guess that you just have to get to know her.
Q's
On lab #3 how do we know which graphs are periodic and which are not? I thought that they all showed periodicity. I can see maybe the graph of mass not being. Am I on the right track?
Also I must have missed this information, but where can we find out the color associated with the longest wavelength?
Lab #4- Formula for metal oxide
I am stuck on #15 that deals with the theoretical percent composition for bismuth. Once you have the weight for bismuth and for oxygen what do you do? Or where can I look in the materials to figure this out?

I am also confused on this whole structure of atom thing. #1 on the chapter objectives for chapter two-help?
Also could you show me how you get the number of neutrons for the potassium-37 and 42 ion from the work sheet on atomic structure.

one more question about lab 2 on #6. Is this a separate flow sheet or the same one? Do we need to do this before the lab?