Chemistry quiz Unit 3

This man came up with the idea of the atom.

• Democritus

• John Dalton

• J.J. Tomson

• Earnest Rutherford

This man proved the existance of the atom and created an atomic theory.

• Democritus

• John Dalton

• J.J. Tomson

• Earnest Rutherford

This man conducted the cathode ray tube experiment and discovered the electron.

• Democritus

• John Dalton

• J.J. Tomson

• Earnest Rutherford

This man used the gold foil experiment to discover the nucleus.

• Democritus

• John Dalton

• J.J. Tomson

• Earnest Rutherford

an atom or molecule with a net electric charge due to the loss or gain of one or more electrons.

• Ion
• Neutron
• Proton
• Electron

Negitivley charged ion

• Ion
• Cation

• Anion

Positivley charged ion

• Ion
• Cation

• Anion

Elements that tend to lose electrons

• Metals

• Nonmetals

Elements that tend to gain electrons

• Metals

• Nonmetals