1 / 8

Where do elements come from?

Where do elements come from?. http:// www.teachersdomain.org /resource/ess05.sci.ess.eiu.fusion/.

nituna
Download Presentation

Where do elements come from?

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. Where do elements come from? http://www.teachersdomain.org/resource/ess05.sci.ess.eiu.fusion/ “Every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust.” - Lawrence Krauss

  2. What’s inside an atom? • Greeks: atom • Dalton’s Atomic Theory (1766-1844) 1) 2) 3) 4) 5)

  3. Pair up! Complete the Atomic Pudding Worksheet (Skip questions 5 and 6)

  4. Subatomic particle #1: Electron • J.J. Thomson’s cathode ray (1897) Electron: http://www.youtube.com/watch?v=O9Goyscbazk

  5. Subatomic particle #2: Proton • Rutherford’s gold foil experiment (1911) Expected Actual Nucleus:

  6. Subatomic particle #3: Neutron Isotope Atomic number Mass number

  7. Models and theories can change over time 1913 1897 1911 1803 1918

  8. Protons identify an element, electrons tell you what it can do • Protons  • Electrons 

More Related