1 / 16

Quantum Mechanical View of Atoms

Quantum Mechanical View of Atoms. The electron can be thought of as spread out in space as a “cloud”. Quantum Mechanics of the Hydrogen Atom. n – principal quantum number, positive integer;

Download Presentation

Quantum Mechanical View of Atoms

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Quantum Mechanical View of Atoms

  2. The electron can be thought of as spread out in space as a “cloud”.

  3. Quantum Mechanics of the Hydrogen Atom

  4. n – principal quantum number, positive integer; l – orbital quantum number, is related to the magnitude of the angular momentum of the electron; at given n can take integer values from 0 to (n-1); ml – magnetic quantum number, is related to the direction of the electron’s angular momentum, and it can take an integer values from –l to +l.

  5. Zeeman Effect

  6. Spin Quantum Number, ms

  7. Conceptual Example: Possible States for n=3 How many different states are possible for an electron whose principal quantum number is n=3?

  8. Selection Rule Another prediction of quantum mechanics is that when a photon is emitted or absorbed, transitions can occur only between states with values of l that differ by one unit.

  9. The Exclusion Principle

  10. No two electrons in an atom can occupy the same quantum state.

  11. Complex Atoms and Periodic Table of Elements

  12. Conceptual Example Which of the following electron configurations are possible, and which forbidden ?

More Related