{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Ch2ppl - Goal find the charge on the electron to determine...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
John Dalton: – Each element is composed of atoms – All atoms of an element are identical. – In chemical reactions, the atoms are not changed. • Compounds are formed when atoms of more than one element combine. • Dalton’s law of multiple proportions: When two elements form different compounds, the mass ratio of the elements in one compound is related to the mass ratio in the other by a small whole number. Thompson: Cathode rays – voltage cause e to travel from neg to pos; deflection reveals charge to mass ratio to be 1.76 e 8 C/g.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Goal: find the charge on the electron to determine its mass Milikan: Oil Drop - When a drop is perfectly balanced, the weight of the drop is equal to the electrostatic force of attraction between the drop and the positive plate. determined the charge on the electron to be 1.60 e -19 C. Found mass of electron - 9.10X10-28 g Rutherford: Gold Foil proved Thompsons Plum-Pudding wrong; atom is spherical but pos charge is center small and dense, neg surround it...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern