The Rutherford Experiment: Discovery of the Nucleus
Hans Geiger
Ernest Marsden
Rutherford's Planetary Model
Rutherford was a scientist from New Zealand who, in 1910, discovered the nucleus of the atom in his scattering alpha particles experiment with the help from Hans Geiger and Ernest Marsden. Hans Geiger made equipment to count alpha particles and later invented the Gieger counter. Ernest Marsden was a student of Rutherford at the time of his historic experiment.
This is a video describing Rutherford's experiment.
Ernest Rutherford, Hans Geiger, and Ernest Marsden
It was quite the most incredible event that ever happened to me in my life. It was almost as incredible as if you had fired a 15-inch shell at a piece of tissue paper and it came back and hit you.
The discovery of the atom's nucleus came as a result of an experiment performed by Ernest Rutherford and some of his fellow scientists, Hans Geiger and Ernest Marsden. Rutherford fired positively charged alpha particles at a thin sheet of gold foil (this sheet was only a few atoms thick). They expected the alpha particles to pass through with little deflection or loss of energy. This hypothesis was based on Thompson's plum pudding model which suggests that an atom is a positive liquid-filled sphere with negative electrons suspended in it, The majority of the alpha particles passed straight through the gold, however, several had a large deflection The most surprising was that one alpha particle in every eight thousand bounced straight back. After two years of deep thinking, Rutherford, Hans, and Geiger concluded that an atom is made up of a sphere with a positively charged nucleus in the center with negatively charged electrons traveling around the outside. The positive nucleus deflected positive alpha particles in the experiment. Years later after more experiments, Rutherford discovered that the nucleus is actually made up of positively charged protons and neutral neutrons. By using his Scattering Formula, Rutherford could calculate the number of positive charges in the nucleus. From there he found that the the number of positive charges is equal to the atomic number.
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Youtube
The Discovery of the Atomic Nucleus (3 of 15)
Tags: Alom, Brian, CERN, Collider, Cox, Dr, Hadron, Large, LHC, neutrons, nucleus, Particle, Physics, protons, Rutherford, Shaha
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packers434 1 year ago
This was one of my favorites. It had great color, creativity, and organization. The video was also great and helped me to understand the concept. It could have used slightly bigger text.
-Willie Cook
alireilly 1 year ago
I think we could have put more information about the scientists. I also think that our background was cute and that it was easy to understand the information.
Ali Reilly
thevortex 1 year ago
Well organized, sufficient information, explained well and with a good video. Probably one of my favorites. Good job.
thevortex 1 year ago
The diagrams and pictures were great, and helped me visualize what I was reading, so that was really good. The information was helpfull and easy to understand, and I liked that.
Steven
abbiefarr 1 year ago
I think something that I could have done was to include more information on the scientists such as other accomplishments. Also, I could have mentioned the first model that Rutherford suggested.
Abbie Farr
ChemistryMMC 1 year ago
This glog was creative yet simplistic enough to not get distracted. The diagrams were great visual aids and the text had enough information and great clarity. Good video and well organized. Great job.
Chelsea Gatterdam