Amal Tamimi
Published on Dec 02, 2015
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PRESENTATION OUTLINE
DEMOCRITUS
DEMOCRITUS
- He said all atoms were small, hard particles
- He thought atoms were atoms were made of single material
- That they were formed into different shapes and sizes
- Atoms- the smallest unit of an element that maintains the properties of that element
Photo by Garret Voight
JOHN DALTON
JOHN DALTON
- That atoms can't be created, divided, nor destroyed
J.J. THOMSON
J.J. THOMSON
- small negative particles inside the atom.
- The name of his model was plums in a pudding
ERNEST RUTHERFORD
ERNEST RUTHERFORD
- discovered alpha and beta rays
- Jimmy Neutron sign; has lots of lines
Photo by DARREN ST0NE
niels bohr
neils bohr
- Electrons lie in discrete, spherical orbitals
modern theory
modern theory
- neils bohr and ernest rutherford
- where electrons are when they rotate around the nucleus
