Atomic Theory Comic Strip #2
Texto del Guión Gráfico
- So our next individual is a little less significant in the history of this theory but is still important to mention. This of coarse would be Robert Millikan who was an American experimental physicist who was born March 22nd, 1868, in Illinois of the United States. To put it simply, Robert Millikan discovered and proved the charge of an electron and this was obviously his most important contribution to this field. He achieved this by doing his famous oil drop experiment to see how much voltage the positive charge could reach. Although he didn't achieve as much as other scientists we've discussed, he is still very important to remember.
- I will be sure to remember Robert Millikan during my test.
- Now the next person on our list is one that is extremely important and you must be sure to remember him while writing your assessment. This man would be Ernest Rutherford who was a New Zealand physicist born August 30th, 1871, in Brightwater, New Zealand. Now Rutherford was actually the first person to prove that the typical atom has a positive solid center and negative particles around the outside., and that the majority of the atom was empty space. He was able to achieve this by doing his famous gold foil experiment where certain particles were fired at a sheet of gold and if they deflated the sheet, it meant that they had hit something that was the same charge. His greatest contribution was obviously his theory about atoms having both a positive and negative charge and this really contributed to the atomic theory.
- Game Changer!
- Shortly after Rutherford's discoveries came a man by the name of Niels Bohr who revolutionized the way to view the charge of certain atoms. Bohr was a Danish physicist who was born October 7th, 1885, in Copenhagen, Denmark. His greatest contribution to this field would definitely be his Bohr diagrams which he created using the recent studies from Ernest Rutherford. His design answered many questions that scientists posed at the time and showed the electrons in the electron shells, the amount of protons and neutrons and also how light is emitted from the electrons.
- Excellent!
- Those diagrams are so helpful, I just learned how to make them a couple days ago in class.
- I know you probably need to head home soon so I'm going to keep this one short about James Mosely. in 1914, this man published a paper in which he concluded that atoms should be organized in the periodic table using something called an atomic number. He suggested that they be ordered by the number of protons and neutrons inside the atomic nucleus. However, Mosely died at age 27 in 1915 and didn't have the opportunity to continue his growing science career. His greatest contribution was his suggestion of using atomic numbers to order elements which is something we do in the present as you know.
- May he rest in peace. Thank you James Mosely
- Finally we have come to our final scientist of the day and I'm sure you're very happy about this. So this final man is none other that James Chadwick who was born October 21st, 1891 in Bollington, United Kingdom. His greatest contribution to this field was his discovery of the neutron in which he received a Nobel Prize for in 1935. Before this, he was a student of Rutherford, who oversaw his Ph.D. and made him assistant director of the lab at Cambridge University. in 1919, Rutherford proposed the idea of a existence of a neutral particle but Chadwick and the other scientists couldn't find it. Later, Chadwick used the same technology used to track radiation only he used to find this specific particle. In short, he was successful and was highly rewarded for his contributions and that brings us to where we are now in the present.
- That is so interesting!!!
- Thank you so much Oliver. I'm going to go ACE this test because of you.
- Good Luck my friend!!! For more information check out: britannica.com, wikipedia.org and historyoftheatomicttheory.com. These websites are where I get all my information from.
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