Slide 1

ERNEST RUTHERFORD By Haley Tipten and Daniel Bernhardt Slide 2 Discoveries The Gold Foil Experiment- Rutherford found that a narrow beam of - particles was broadened when it passed through a thin film of metal. He knew that the particle had a considerable mass and moved quite rapidly. He predicted that all of the particles would be able to penetrate the metal foil, although they would be scattered slightly by collisions with the atoms through which they passed, but he found that a small fraction of the particles were scattered through angles larger than 90 degrees. When he published the results of these experiments in 1911, Rutherford proposed a model for the structure of the atom that is still accepted today. Ernest concluded that all of the positive charge and all of the mass of the atom is concentrated in an small fraction of the total volume of the atom, which he called the nucleus. Rutherford proposed the name proton for the positively charged particles in the nucleus of an atom. Ernest also proposed that the nucleus also contained a neutral particle, eventually named the neutron. It was not until 1932, however, that James Chadwick was able to prove that these neutral particles exist. Slide 3 Rutherfords model of the atom Slide 4 Random Facts Lived 1871-1937 Born on August 30 th His mom was a teacher and his dad was a farmer. Was Knighted in 1914 Died of an untreated disease he was born with called, Umbilical Hernia. Slide 5 Citations https://www.google.com/search?q=ernest+rutherford+stru cture+of+the+atom&biw=1600&bih=775&source=lnms&tb m=isch&sa=X&sqi=2&ved=0CAYQ_AUoAWoVChMIyofO wYaqyAIViHg-Ch3eRQhx#imgrc=ZFrii9l1-x2luM%3A https://www.google.com/search?q=ernest+rutherford+stru cture+of+the+atom&biw=1600&bih=775&source=lnms&tb m=isch&sa=X&sqi=2&ved=0CAYQ_AUoAWoVChMIyofO wYaqyAIViHg-Ch3eRQhx#imgrc=ZFrii9l1-x2luM%3A http://chemed.chem.purdue.edu/genchem/history/rutherfo rd.html http://chemed.chem.purdue.edu/genchem/history/rutherfo rd.html http://www.iun.edu/~cpanhd/C101webnotes/modern- atomic-theory/rutherford-model.html http://www.iun.edu/~cpanhd/C101webnotes/modern- atomic-theory/rutherford-model.html https://www.google.com/search?q=ernest+rutherford&biw =1600&bih=775&source=lnms&tbm=isch&sa=X&sqi=2&v ed=0CAYQ_AUoAWoVChMIgtnB5_-pyAIViRk- Ch3WEQb2&dpr=1#imgrc=tvEG5Hnu_Ks0UM%3A https://www.google.com/search?q=ernest+rutherford&biw =1600&bih=775&source=lnms&tbm=isch&sa=X&sqi=2&v ed=0CAYQ_AUoAWoVChMIgtnB5_-pyAIViRk- Ch3WEQb2&dpr=1#imgrc=tvEG5Hnu_Ks0UM%3A