Chapter 6 - Of atoms =arrangement of electrons in the atom...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
Of atoms =arrangement of electrons in the atom 1. Radiation that carries E through space 2. EMR is characterized by wavelength nature See figure 6.2 N (nu) = # of cycles that pass a point in space /s Hertz(Hz) 1Hz = 1s-1 N (frequency) * wavelength = C (speed of light) C = 3.00 X 10 8 m/s Wavelength distribution depends on temp. "red hot" vs. "white hot" emit different wavelengths Proposal: E can only be absorbed or emitted from atoms in certain amounts = Quanta Quantum = smallest amount of E emitted or absorbed Related E to frequency. E= hn or 6.626 X 10-34 J*S X frequency
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 4
Provides evidence for the particle nature of light and quantization Ephoton = hn Planck n*l = C, n = (C/l) n=frequency, l =wavelength E=mc2 1/c * mc= h (c /l) * 1/c = mc = h/l l = h/(mc) e- are only ejected if sufficient E Below "threshold frequency" ->no e- emitted Above "threshold frequency" -> e- emitted 1. Light has wave-like and particle nature monochromatic continuous Ex. Rainbow: continuous spectrum of light Gases in vacuum, turn on voltage Line spectrum Rydberg-line spectrum of H 1/l = R H (1/n 2 1
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern