Atomic Structure and Nuclear Chemistry

WHAT DID JOHN DALTON DO?

• Added -1 charge to electron

• Atomic Theory

• Discovered the Electron

• Concluded that most of the atom is empty space.

DALTON´s ATOMIC THEORY

• All elements are made of tiny particles called atoms

• All atoms of a given element are identical to each other

• All atoms of a given element are different from atoms of other elements

• Atoms of 1 element can combine with atoms of another element to form compounds

WHAT DID JOHN DALTON DO?

WHAT DID THOMSON DO?

• Atomic Theory

• Discovered the electron

• Assigned the electron a -1 charge

• Gold Foil Experient

WHAT DID THOMSON DO?

• Discovered the electron

• Plum Pudding Model of the Atom

WHAT DID MILIKAN DO?

• Assigned the -1 charge

• Discovered the electron

• Atomic Theory

• Gold Foil Exp.

WHAT DID MILIKAN DO?

THE CORE OF THE ATOM IS.....