HISTORY OF ATOM AND QUANTUM NUMBERS

The neutral subatomic particle of an atom.

• Proton

• Neutron

• Nucleon

• Electron

The center of the atom.

• Electron Cloud

• Energy Levels

• Nucleus

• Orbitals

The negative subatomic particle of an atom.

• Proton

• Neutron

• Nucleon

• Electron

The negative subatomic particle of an atom.

• Proton

• Neutron

• Nucleon

• Electron

The positive subatomic particle of an atom.

• Proton

• Neutron

• Nucleon

• Electron

He designed the original atomic theory of matter. His model is sometime referred to the Billiard Ball or Bowling Ball Model.

• Bohr

• Dalton

• Rutherford

• Thompson

The smallest particle of an element that retains the chemical identity of that element.

• Anode

• Cathode

• Electron

• Atom

Discovered the electron using cathode ray tube. His model of the atom was called the Plum Pudding Model of the atom.

• Bohr

• Millikan

• Thompson

• Rutherford

He determined that all atoms have a tiny dense nucleus containing protons and the atom was mainly empty space with the Gold Foil Experiment.

• Bohr

• Millikan

• Thompson

• Rutherford

His model of the atom assigned specific orbits or energy levels that electron were in based on their energy. Also, his planetary model is where the negatively charged electrons orbit a small, positively charged nucleus similar to the planets orbiting the sun.

• Bohr

• Dalton

• Rutherford

• Thompson