Now, I just want to make it clear that normally I wouldn't ask for straight out answers, and I'm not asking for straight out answers here... Just a point in the right direction, unless it is absolutly necessary to give away the answer in explaining the concept to me so that I understand. Basically I am doign a mini-lab on the spectra produced by various elements when their gas is excited by electricity. The questions that came with the lab (at least he ones that have stumped me) include: What do the different colours in the line spectra represent? How does the Bohr model of the atom explain the spectrum seen for that atom (for example, my hydrogen spectrum that I observed had 2 lines on the left side, a purple and blue, and then one red line on the far right) ? So those tw oquestions, although we are supposed to make this up from the top of our head, have stumped me, and personally, I'd like to understadn the concept behind both of these questions. Can anyone explain? Please and thank you.