Recent content by alexlee33

I had my exam this morning, and it went quite well! I studied for 5 hours last night, and thanks to your help too, I find the unit was easier. My diploma (final) exam is coming up in a few weeks after Christmas break; so I may pop in if I have any more questions from previous units as I study...

The only part I could find energy for was the photon, by using E = hc/(wavelength) The nucleus has no kinetic energy, how would I find it's potential? Or does it have none? I am not sure how to find the energy of the electron either, since I only know the charge to be 1.6 x 10^-19. Is that...

Awesome, thanks! Yup, I'm 17 exactly. I'll try comparing the energies and see what I can do.

Thanks guys! :)

[SOLVED] Value of inifinity? Edit: typo in title (infinity); sorry Homework Statement What is the shortest wavelength of light emitted by an electron in the Brackett series of spectra lines of the hydrogen atom? Homework Equations 1 / (wavelength) = RH ( (1/nu^2) - (1/nl^2) )...

Thank you so much! I believe that I have figured out number one. I found the energy of each wavelength to be: 4.97 x 10^-19 J 3.62 x 10^-19 J 3.49 x 10^-19 J and 2.93 x 10^-19 J Then I found the energy of the electron (2.00 eV multiplyed by 1.6x10^-19, which equals 3.2x10^-19)...

If you can help me on even one of these questions, it's greatly appreciated! Homework Statement Use the following info to answer next 4 questions: The vapor of Element X produces an emission spectrum that consists of wavelengths of 400 nm, 550 nm, and 680 nm. 1) If an unexcited...