Chemistry Atomic Theory

Front 1

An atom

Back 1

Is the smallest part of an element that still retains the properties of that element.

Front 2

Dalton's Atomic Theory (3)

Back 2

1.all matter is made up of very small particles called atoms

2. Atoms can neither be created or destroyed

3.indivisable

Front 3

J.J Thompson discovered?(2)

Back 3

1. Electron

2.e/m ratio of the elctron. E= charge m=mass

Front 4

Cathode Rays ?? Who

Back 4

William Crookes

Front 5

J.J Thomson electron how??

Back 5

Front 6

Named the electron

Back 6

George Stoney

Front 7

Robert Milikan (3)

Back 7

1.Oil Drop experiment

2.size of charge on the electron

3.mass of an electron

Front 8

Ernest Rutherford (2)

Back 8

1. Discovered nucleus and proton

2.Gold leaf Experiment- atoms are mostly empty space.

Alpha particles helium nucleus

Front 9

James Chadwick discovered?

Back 9

Neutrons

Bombarded beryllium with alpha particles

Front 10

Wave Nature of the Electron

Back 10

De Broglie wave-particle duality