Atomic Structure Video

Atomic Structure Video 

To understand the development of the model of the atom 

505 Views | Preview 

16 Video Interactions 


  1. 00:00:39 

    What does the word 'Atomos' mean?

     

    • Small pieces 
    • Uncuttable 
    • Little atoms 
    • Invisible 

  2. 00:00:40 

    *1st to propose that all matter was made of small particles; 'atomos' which means indivisible or uncuttable

    *No experimenting; pure philosphy

    *All different shapes and sizes 

    • Democritus

       

    • Copy the above in your notebook, then choose A

       

  3. 00:02:06 

    How long did it take for scientists to further develop Democritus and Leucippus' idea of atoms?

     

    • about 300 years 
    • about 500 years 
    • about 2300 years 
    • about 3500 years 

  4. 00:02:21 

    * Proposed atomic theory

    * Did experiments with gases

    * 1st to experiment and try to prove atoms existed 

    • John Dalton

       

    • Copy the above in your notebook and choose answer A

       

  5. 00:03:45 

    Which scientist used cathode ray tubes and magnets to discover the electrons?

     

    • JJ Thomson 
    • John Dalton 
    • Democritus 
    • Antoine Lavoisier 

  6. 00:04:22 

    Thomson called his model the ____________ model because it reminded him a English dessert?

     

    • Chocolate Chip Cookie 
    • Plum Pudding 
    • Tea Cake 
    • Biscuit 

  7. 00:04:23 

    *discovered electrons

    *plum pudding model (a positive sphere with electrons embedded throughout) 

    • JJ Thomson

       

    • Copy the above in your notebook and choose answer A

       

  8. 00:05:25 

    Which of the following discoveries were made by Ernest Rutherford?

     

    • The atom consists of a dense center called the nucleus. 
    • There are positive particles called protons in the center of the atom. 
    • There are neutral neutrons in the center of an atom. 
    • The atom is composed of mostly empty space. 

  9. 00:05:26 

    *Performed the 'Gold-Foil Experiment'

    *Proved there was a positive nucleus (surrounded by mostly empty space) 

    • Rutherford

       

    • Copy the above in your notebook and choose answer A

       

  10. 00:06:28 

    This scientist came up with the planetary model which suggested that electrons travel in fixed paths around the nucleus.

     

    • Albert Einstein 
    • Niels Bohr 
    • Max Planck 
    • Ernest Rutherford 

  11. 00:06:35 

    *Electrons travel around the nucleus in set paths (orbits) with a fixed amount of energy (energy levels) 

    • Neils Bohr

       

    • Copy the above in your notebook and choose answer A

       

  12. 00:07:10 

    Werner Heisenberg determined that it is impossible to know both the momentum and the __________ of an electron, this is called the Heisenberg Uncertainty Principle.

     

    • Kinetic Energy 
    • Location 
    • Mass 
    • Speed 

  13. 00:07:56 

    Quantum style atoms are drawn as clouds with the intensity of color representing the _____.

     

    • Exact location of an electron 
    • Probability of finding an electron 
    • Probability of finding a proton 

  14. 00:08:04 

    *Electron cloud model - shows a 'cloud' to represent the probability of electron location 

    • de Broglie & Schrodinger

       

    • Copy the above in your notebook and choose answer A

       

  15. 00:08:20 

    *discovered the neutron 

    • Chadwick

       

    • Copy the above in your notebook and choose answer A

       

  16. 00:08:50 

    Scientists today are absolutely sure that the Electron Cloud Model is the most accurate representation of an atom. 

    • True.

       

    • False.

       

Click here to preview, use, or make a copy of this interactive video lesson plan (bulb).