1 / 6

Ch. 13 Models of Atoms

Ch. 13 Models of Atoms. J.J. Thomson. “Plum pudding” atom negatively charged e - stuck into a lump of positively charged material – similar to chocolate chip cookies. “The Blow Pop”. Ernest Rutherford

garson
Télécharger la présentation

Ch. 13 Models 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. Ch. 13 Models of Atoms

  2. J.J. Thomson “Plum pudding” atom negatively charged e- stuck into a lump of positively charged material – similar to chocolate chip cookies

  3. “The Blow Pop” Ernest Rutherford In Rutherford’s gold foil experiment he discovered electrons surround a dense positive nucleus.

  4. Bohr Model electrons are arranged in fixed orbits around the nucleus, called electron shells. Like planets revolving around the sun. ex. Orbits gum

  5. Bohr Model cont. • Electrons found in the shells: 1st shell can have up to 2e- 2nd shell can have up to 8e- 3rd shell can have up to 18e- 4th shell can have up to 32e- • The outermost shell cannot have more than 8e- (atoms bond with other atoms to try to get 8e- in their outermost shell).

  6. Quantum Mechanical Model • Quantum mechanics was developed by Erwin Schrodinger • Estimates the probability of finding an e- in a certain position • Electrons are found in an “electron cloud”

More Related