Blog Post #1
(Sept 17, 2015)
Recently we started a new chapter in chemistry all over Atomic Structure and Radioactivity. We covered a new scientist, John Dalton, who proposed his own theory, Dalton's Theory. He was a baseline for future scientists to further build off of his ideas, including JJ Thomson.
JJ Thomson came around when technology was in a full swing. He was able to use a cathode ray tube to show the atoms of any element emit particles with a negative charge, or he discovered electrons. A best way to describe Thomson's model would be a chocolate chip cookie. The dough would equal the sphere, and the chocolate chips would equal the electrons.
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Then Rutherford came along and proved that there was a presence of a positively charged center in an atom, or the nucleus.
With all these scientists contributions over the years, we have come up with the current atomic model used for today.
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Your use of the current atomic model diagram is very helpful! It ties in all the previous ideas found by other scientists and shows how their progression eventually led to what we now use today.
ReplyDeleteThis blog post is extremely well thought out, I can see a lot of time was put into it. The way you showed progression was excellent because it helped tie all of the mentioned scientists together all the way up to today's current model. The use of models and diagrams was extremely helpful because I tend to be more of a visual learner.
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