Experiences That Led To Interest In Studying The Atom J.J.Thomson was always interested in science. In school, he studied math, physics,and engineering. Thomson planned to get an apprenticeship as an engineer.However, when his father passed away, his family could no longer afford it. Asa result, Thomson set out to get a scholarship to continue his learning.
He wona scholarship and attended the University of Cambridge to study math which endedup changing the path of his career from an engineer to a physicist researchingand writing about the atom. Thomson’s traumatic experience ended up greatlyimpacting science today.Work On The Atom And Its Contribution To The Modern Atomic Model Thomson’swork was very important in influencing the modern atomic model. His famouscathode ray tube experiment led to the discovery of subatomic particles withinatoms (electrons).
This discovery is an essential part of our modern atomicmodel. Thomson also discovered that inside atoms there are positive andnegative charges. His plum pudding model of the atom showed positive andnegative charges, making him the first to think this. His brilliant experimentsended up winning him a Nobel Prize in 1906, proving the importance of his work.
On top of this, these contributions to our knowledge of atoms are in our atomicmodel today!Contributions In The Current Model And Those That Were Disproved J.JThomson made many important discoveries about the atom, some of which were keptin the atomic model and some of which were eventually disproved. First of all,he was the first person to find out that atoms are composed of subatomicparticles. While conducting his cathode ray tube experiment he discoveredelectrons. He also designed his own atomic model called the plum-pudding model.This model was eventually disproved by his former student Ernest Rutherfordwith his gold foil experiment. The gold foil experiment proved that the atom ismostly empty space with a positively charged nucleus in the middle, as opposedto Thomson’s model that was completely full with positive and negative chargesscattered throughout.
However, Thomson’s plum-pudding model still had somecorrectness to it. His plum pudding model included positive and negativecharges, which are both present in our modern atomic model.Sources1.”J.J. Thomson – Biographical.” Nobelprize.
org. Nobel Media AB 2014.Web. 15 Jan 2018. http://www.
nobelprize.org/nobel_prizes/physics/laureates/1906/thomson-bio.html2. “J. J.Thomson.
” Famous Scientists. famousscientists.org.
27 Jul. 2015. Web.
1/15/2018. www.famousscientists.org/j-j-thomson/3. DeWitt, Tyler.
“Cathode Ray TubeExperiment.” Socratic.org. www.socratic.org/chemistry/a-closer-look-at-the-atom/cathode-ray-tube-experiment/