5th Six Weeks Review IPC

What is the smallest particle of an element that retains the element’s properties?

• compound
• atom
• proton
• quark

The nucleus of an atom has which subatomic particles?

• protons and electrons
• electrons and neutrons
• electrons, protons, and neutrons
• protons and neutrons

Protons have what kind of charge?

• positive
• negative
• neutral
• no charge

Electrons have what kind of charge?

• positive
• negative
• neutral
• no charge

Who was the first person to think about an atom’s existence?

• Aristotle
• Democritus
• Dalton
• Rutherford

Which scientist said substances were made of the four elements including earth, air, fire, and water?

• Aristotle
• Democritus
• Dalton
• Rutherford

Which scientist modernized Democritus’ ideas, and came up with the atomic theory?

• Aristotle
• Democritus
• Dalton
• Rutherford

Which of the following is true about Dalton’s Atomic Theory?

• atoms of a given element are different than another element
• atoms of given element are identical in mass, size, but not chemical properties
• atoms of a given element are exactly the same as a different element
• atoms are divisible and destructible

Which scientist discovered the nucleus of the atom?

• Aristotle
• Democritus
• Dalton
• Rutherford

Which scientist suggested that electrons traveled in fixed orbits around the nucleus?

• Dalton
• Bohr
• Rutherford
• Democritus