1. B. 1-J.J.Thomson, 2-Dalton, 3-Rutherford
QUESTION:
Match the pictorial representations showing four neighboring atoms to the scientist most closely associated with the atomic model. A. 1-Dalton, 2-J.J.Thomson, 3-Rutherford
B. 1-J.J.Thomson, 2-Dalton, 3-Rutherford
C. 1-J.J. Thomson, 2-Rutherford, 3-Dalton
D. 1-Rutherford, 2-J.J.Thomson, 3-Dalton
SCRIPT:
Match the pictorial representations of showing four neighboring atoms to the scientist most closely associated with the atomic model.
PAUSE
Model 1 resembles J.J. Thomson’s plum pudding model
CALLOUT “J. J. Thomson’s Plum pudding model”
which was proposed following the discovery of the electrons from cathode ray tube experiments.
Thomson envisioned atoms as positively charged spheres
POINT to blue circles
with negatively charged electrons embedded throughout.
POINT to red circles
Model 2 resembles the nuclear model of the atom,
CALLOUT “Rutherford’s Nuclear Model”
Where the mass of the atom is concentrated in a positive charged nucleus
POINT to nuclei
And the electrons are moving about in what is mostly empty space around the atom
POINT to mostly empty space
Model 3 resembles Dalton’s model of the atom.
CALLOUT “Dalton’s structureless spheres”
Which are plain structureless spheres.
Therefore, the correct answer is C…
Model 1 is due to J. J. Thomson…
Model 2 is due to Ernest Rutherford…
And Model 3 is due to John Dalton
CLICK PAUSE END RECORDING

2. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08