Atomic History

Discovered that the atom was mostly empty space with his Gold Foil Experiment

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

created the "plum pudding" model, a positively charged sphere with negative electrons randomly scattered throughout

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

believed that the universe was made of tiny, "uncuttable" particles

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

created a model of the atom with electrons moving around the nucleus in fixed orbits, like the planets orbiting the sun

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

discovered the electron

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

His model looked like this...

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

His model looked like this...

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

Tags

NGSS.MS-PS1-1

His model looked like this...

• Democritus

• Bohr

• Rutherford

• Thompson

• Dalton

Tags

NGSS.MS-PS1-1

In Dalton's Atomic Theory, all elements consist of __________ that cannot be divided.

• Atoms
• Parts
• Molecules
• Hydrogen

Tags

NGSS.MS-PS1-1

In the Thomson Model, he discovered the existence of what particle?

• Electrons
• Protons
• Neutrons
• Quarks