Discovery of the Electron, Models, and Theories.

Download Discovery of the Electron, Models, and Theories.

Post on 22-Feb-2016

27 views

Category:

Documents

0 download

DESCRIPTION

Discovery of the Electron, Models, and Theories. Andrew, Anthony , Cody. JJ Thompson. Born 1856, England; Died 1940 (age 83) Won Nobel Prize (1906) Made great inquirers about the atoms smaller particles Concluded atoms were divisible based on his work. JJ Thomson. - PowerPoint PPT Presentation

TRANSCRIPT

Discovery of the electron, models, and theories.

Discovery of the Electron, Models, and Theories.Andrew, Anthony, CodyJJ ThompsonBorn 1856, England; Died 1940 (age 83)

Won Nobel Prize (1906)

Made great inquirers about the atoms smaller particles

Concluded atoms were divisible based on his work

JJ ThomsonExperiments dealt with cathode rays

Biggest parts in discovering the electron

Link to more on his experimentThomson's ExperimentThomsons Model

Robert MillikanBorn 1868, Illinois; Died 1953 (age 85)

Won Nobel Prize (1923)

Discovered charge of electron

Oil-drop experimentRobert MillikanWeight-to-charge ratioNiels BohrBorn in 1885, Denmark; Died 1962 (age 77)

Won Nobel Prize(1922)

Did work on quantum theory

Made model of atom

Niels BohrUsed different theories & structures to create atomic model

Model had electrons orbiting around nucleus

Niels Bohr

Louis de BroglieBorn 1892, in France; Died 1987 (age 94)

Won Nobel Prize (1929)

Wave nature of electrons

All matter has wave propertiesWerner HeisenbergBorn 1901, Germany; Died 1976 (age 74)

Won Nobel Prize (1932)

Creator of quantum mechanics

Published paper on model of nucleusWerner Heisenberg

Erwin SchrodingerBorn 1887 in Austria; Died 1961 (age 73)

Won Nobel Prize (1933)

Worked on quantum theory

Looked at electron orbitErwin SchrodingerImportant work on wave mechanics

Made quantum Model

Bohrs ModelHydrogen only

Electrons orbit around nucleus

Disproved by quantum mechanicalBohrs Model

Quantum Mechanical ModelMade by Schrodinger

Depicts electron movement

Works with all elementsQuantum Mechanical Model

Cathode ExperimentThomson's Cathode Ray Experiment

Oil Drop Experimenthttp://ffden-2.phys.uaf.edu/212_fall2003.web.dir/Ryan_McAllister/Slide3.htm

Timeline

Correct Theories/ModelsBohrs model

Broglies thesis

Schrodingers model

Plancks quantum theory

Heisenbergs modelIncorrect Theories/ModelsThomsons model

Bohrs Model