1 of 13

Slide Notes

DownloadGo Live

Atomic Timeline

Published on Dec 02, 2015

Travis graham

View Outline

MORE DECKS TO EXPLORE

PRESENTATION OUTLINE

1.

DEMOCRITUS

460B.C PROPOSED THE 1ST ATOMIC THEORY
Photo by Carbon Visuals
2.

Lavoisier
1777 provided formula for conversion of matter in chemicals reactions & distinguish between element and compound

3.

1800-1890S

4.

J.DALTON

1803 AGREED THAT ALL MATTER WAS CREATED BY MATTER
Photo by Leo Reynolds
5.

Erwin S.
1887 discovered the electron cloud model that suggests that the atom had an electron wave like orbit

Photo by Reclamation Revolution
6.

THE CURIES

1898 Studied and identified radioactive elements.
7.

JJ THOMSON 1898

  • First to measure the election. Describes the atom as a slightly positive sphere with small electrons inside.
  • Developed the plum-pudding model of the atom.
  • Describes the atom as a slightly positive sphere with small electrons inside.
8.

1900-1920S

9.

E.RUTHERFORD1909

INFERRED A SMALL, DENSE, POSITIVELY-CHARGED NUCLEUS AS THE RESULT OF THE ALPHA PARTICLE SCATTERING GOLD FOIL EXPERIMENT.
10.

NEILS BOHR

1922 PROPOSED BOHR MODEL/PLANETARY MODEL
11.

1930-1940

12.

CHADWICK

1931 DISCOVERED THE NEUTRON
Photo by Dren P
13.

GLEN T. SEABORG

1941 HE DISCOVERED THE TRANSURANIUM ELEMENTSthe

Travis Graham