Development of the Atomic Theory

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by LWiser
Last updated 5 years ago

Discipline:
Science
Subject:
Chemistry
Grade:
10,11,12

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Development of the Atomic Theory

Development of the Atomic Theory

by Lauren Wiser

John DaltonDalton theorized that elements contained atoms of a single type. Learn more about John Dalton's accomplishments here!

J.J. ThomsonThomson discovered that atoms have negatively charged particles. He developed the plum pudding model of the atom.

Ernest RutherfordRutherford found that atoms contain a positively charged central region that contains most of the atom's mass. His gold foil experiment led him to this discovery.

Niels BohrBohr created a model of the atom that depicts eletrons moving around the nucleus at a distance related to energy levels.

1808

History

1897

1911

1913

DemocritusThe ancient Greek philosopher Democritus is credited with thinking of the atom and is one of the earliest atomic theorists.

400 BC

Click here to learn more about Democritus!

Resources:http://www.abcte.org/files/previews/chemistry/s1_p1.htmlhttps://prezi.com/6gmi_wcj_su9/copy-of-copy-of-democritus-timeline/https://www.youtube.com/watch?v=sDoH5fPTOfohttp://www.universetoday.com/38326/plum-pudding-model/http://en.wikipedia.org/wiki/J._J._Thomsonhttps://www.youtube.com/watch?v=kHaR2rsFNhghttp://chemistry.tutorcircle.com/inorganic-chemistry/bohr-model.htmlhttps://www.youtube.com/watch?v=wCCz20JOXXk

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