1 / 15

Energy levels and sub-levels

Energy levels and sub-levels. Electron Configurations. Energy levels and sub-levels. Energy levels. These are broadly similar to the “shells” used in the Bohr Model.

ondrea
Télécharger la présentation

Energy levels and sub-levels

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. Energy levels and sub-levels Electron Configurations

  2. Energy levels and sub-levels Energy levels • These are broadly similar to the “shells” used in the Bohr Model • There are 4 main energy levels. The main energy levels are called the Principal Quantum numbers and abbreviated with the letter “n”. • Each main energy level has a corresponding number of sub-levels. So the first energy level has one sub-level, the 2nd level has two sub-levels, the 3rd has three, and so on.

  3. Energy levels and sub-levels Sub-levels The main energy levels contain sub-levels The different main energy levels have different numbers of sub-levels in them There are four types: s, p, d, f

  4. Energy levels and sub-levels: Orientation • The sub-levels themselves may have different orientations where the electrons can reside. • s has 1 orientation • p has 3 orientations • d has 5 orientations • f has 7 orientations

  5. Energy levels and sub-levels: Spin • Each level, sub-level, orientation can have a maximum of 2 electrons. • Since the electrons are existing in the same “energy-space”, they must avoid interfering with each other. (They have similar charges, and so should repel each other) • To avoid this, they must be “spinning” in opposite directions. This is often refered to as “spin-up and “spin-down”.

  6. s 1 2 Energy levels and sub-levels: Levels 1 and 2 s 1 1 2 2 8 2 p 3 6

  7. p 3 6 s 1 2 Energy levels and sub-levels: Level 3 18 d 10 5

  8. Energy levels and sub-levels : Level 4 4

  9. Energy levels and sub-levels : Level 4

  10. Energy levels and sub-levels : Level 4

  11. Energy levels and sub-levels : Level 4

  12. Energy levels and sub-levels : Level 4

  13. Energy levels and sub-levels: Level 4

  14. Energy levels and sub-levels: extended There are three more main levels after Level 4 Their energy sub-levels and orientations are described with the same rules that apply to Level 4 So Level 5 has 5s. 5p, 5d, and 5f sub-levels Level 6 has 6s, 6p, 6d and so on sub-levels

  15. Credits • With the inspiration and original work of Nigel Saunders, Creative Chemistry

More Related