Chem - Unit 3 Quiz

Who discovered the electron?

• Democritus
• Dalton
• Thomson
• Rutherford

Who's model of the atom does the picture represent?

• Dalton
• Thomson
• Rutherford
• Bohr

Who stated that the electrons would orbit the nucleus like planets orbit the sun?

• Dalton
• Thomson
• Rutherford
• Bohr

Who discovered the nucleus?

• Dalton
• Thomson
• Rutherford
• Bohr

What is the name of this model of the atom?

• Thomson's Model
• Plum Pudding Model
• Electron Cloud Model
• Bohr Model

What is the atomic number?

• Number of protons
• Number of protons and neutrons
• Number of neutrons
• Number of protons and electrons

What do all isotopes of the same element have in common?

• Same number of neutrons
• Same number of protons and neutrons
• Same number of protons
• Same number of neutrons and electrons

What is the name of this model of the atom?

• Dalton's Model
• Thomson's Model
• Electron Cloud Model
• Rutherford's Model
• Bohr's Model

What is the atomic number for this isotope?

• 9
• 10
• 19
• 28

How many protons does this element have?

• 9
• 10
• 19
• 28