Ernest+Rutherford+Hall

Everything you need to know about for Ernest Rutherford. Hall created by: Diamond, Garrett, Nia.

__ Ernest Rutherford (1871-1937) __

 **//Ernest Rutherford was born in August 30, 1871. He was known as a physicist scientist who became famous with his theory on the structure of the atom. Ernest Rutherford was one of the first researchers in nuclear physics. In addition, he recognizes the three components alpha, beta, and gamma rays this lead to the theory of the atom structure. However, Rutherford was elected to Royal Society and became the president in that institute.//** // Rutherford did his research, that began in 1909 on the model of a atom and came up with his theory in 1911 other things that were going on at the time are listed below: // · The US Postal Savings service began on January 3 · The Triangle Shirtwaist Company fire in New York that killed over 140 people on March 25 · The aircraft was used as an offensive weapon by the Turks in the Turkish-Italian War for the first time · The Supreme Court broke up John D. Rockerfeller’s Standard Oil Company trust · The Mexican Revolution begins May 25, Porfirio Diaz the president(since 1877) was replaced by Francisco Madero · Roald Amundsen, a Norwegian polar explorer, reached the South Pole. He beat Robert F. Scott by 35days · United States invade Honduras

//Rutherford came up with his theory by doing the following experiment using these objects:// He shot radioactive particles through a thin film of gold. He then found out where the particles went by putting up a detecting screen that was made of zinc sulfide. After the experiment was complete, he realized that one out of 8000 of the particles deflected creating his theory that is below that the atom is made up of mostly space.
 * Gold Foil
 * Detecting screen
 * Particle Emitter(shot out the particles at a fast speed)
 * The Slit in the screen so that the particles could go through [[image:1911_gfoil_02.jpg width="384" height="288" align="right"]][[image:1911_gfoil_01.jpg width="436" height="293" align="left"]]

These pictures above describe what exactly happened when Rutherford did the experiment (as well as the words in between) // **After analyzing the data Rutherford realize the "plum pudding" model couldn't accountf or this discrepancy, and in 1911 proposeda new and improved atomic model-called the "Rutherford Model".** // // After doing J.J. Thomson’s experiment and finding flaws, Rutherford came up with the conclusion that : //

1. The atom has a central positive nucleus 2. In the orbit there are negative electrons 3. The nucleus is in the center and when a particle hits the nucleus it deflects off of its path. 4. The atom is made of mostly space. __ Atomic Model-''Rutherford Model" __

  In this picture it shows how Rutherford knew that there was a dense, positive charged nucleus that had negative charged electrons that orbited around it, he just didn’t know exactly where.

Rutherford's experiment and model was all held at the University of Manchester in England. Sources Used: [] [|http://www.rsc.org/chemsoc/timeline//pages/1911.html] [] [] [] [] [] 