Anything that takes up space and has mass.

• Mass
• Proton
• Weight
• Matter

J.J. Thompson discovered the ____________. His model is called the plum pudding model which we sometimes call the chocolate chip model. 

• proton
• electron
• neutron
• nucleus

Subatomic particle that determines the name of an atom. It has a positive charge and is located in the nucleus of an atom.

• Electron
• Neutron
• Proton
• Voltron

Subatomic particle that has no charge and is located in the nucleus of an atom.

• Proton
• Neutron
• Electron
• Quark

The experiment used by Ernest Rutherford to discover the nucleus of an atom. 

• Cathode Ray Experiment
• Gold Foil Experiment
• Reflector Experiment
• Plum Pudding Experiment

What two subatomic particles effect the mass of an atom?

• Electrons & Protons
• Protons & Neutrons
• Neutrons & Electrons

True or False: Electrons do not orbit around the nucleus of an atom in neat planet orbits but instead move at high speeds in an electron cloud.

• True
• False

True or False: Only living organisms are made up of atoms.

• True
• False

Who came up with this model of an atom?

• J.J. Thompson
• Ernest Rutherford
• Neils Bohr
• James Chadwick

Who discovered the nucleus of an atom?

• John Dalton
• Ernest Rutherford
• James Chadwick
• Neils Bohr