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By Kimmy Standridge, Kendall Hardenberger, Jawon Wright, Logan Bowen:

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1 By Kimmy Standridge, Kendall Hardenberger, Jawon Wright, Logan Bowen:
Ernest Rutherford By Kimmy Standridge, Kendall Hardenberger, Jawon Wright, Logan Bowen:

2 Early life Born: August 30th 1871 in Nelson, New Zealand
Was the fourth of 12 children and he was the second son. At age 10 he received his first science book which'd influenced him to conduct experiments In 1887 he was awarded a scholarship to attend Nelson Collegiate School He earned a Bachelor of Science Degree He was a student under J.J. Thompson at Cambridge Married Mary Newton and had a daughter named Eileen Was know as the “Father of the Nuclear Age” Died on October 19th 1937

3 1909 1911 1919 Presented the Nuclear atom model
Conducted the Gold Foil Experiment. 1909 Presented the Nuclear atom model 1911 discovery of the proton. Hypothesized the existence of the Neutron 1919

4 Description of the design:
A beam of alpha particles, generated by the radioactive decay of radium, was directed onto a sheet of very thin gold foil. The gold foil was surrounded by a circular sheet of zinc sulfide (ZnS) which was used as a detector: The ZnS sheet would light up when hit with alpha particles.

5 procedures Step 1: An alpha source is set up
Step 2: A lead block with a slit served as the source Step 3: Radioactive substance is put inside. Step 4: The foil is a short distance away from the source. The slit is then pointed at the thin gold foil Step 5: With the foil set up as the center of collision. Take a long a long strip of material that is coated with zinc and set it up in an almost complete circle. Step: Turn off the lights and then you will see little blinks of light that resulted when the alpha particle hit the screen Not all of the particles went through the gold foil. Some rang along the sides

6 data

7 Analysis & conclusions
When Rutherford performed the experiment it changed everything\ it was concluded that atom had concentrated When two protons are extremely close they attract More than 100 protons can exist in nucleus Neutrons will also attract As most of the alpha particles passed straight through the foil, this shows that most of the atom is empty space. Thus he concluded that an atom was made of a very dense, positively charged nucleus surrounded primarily by empty space in which electrons could be found.

8 Sources http://www.biography.com http://www.nobelprize.org
Myweb.usf.edu/~mheight/goldfoil.html Modern Chemistry by holt, Rinehart, Winston page 75 chapter 3 section 2

9 The end! By: Logan Bowen Kimmy Standridge Kendall Hardenberger
Jawon Wright


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