Unit 3: History of The Atom

What did Dalton think an atom looked like?

• A solid cube

• A solid sphere

• A circle

• A pyramid

Did Dalton think that an atom was divisible?

• yes

• no

Which model of an atom was put forward by JJ Thomson?

• billiard ball model

• cookie model

• nuclear model

• plum pudding model

Where were the electrons in the plum pudding model?

• Located in the middle of the atom

• Only around the outside of the atom

• Spread evenly throughout the atom

• At the top of the atom

What do we call particles that are inside the atom?

• Superparticles

• Inter-atomic particles

• Intra-atomic particles

• Subatomic particles

Tags

NGSS.HS-PS1-8

What did Ernest Rutherford use to test out the plum pudding model?

• Gold foil

• Silver foil

• Aluminum foil

• Tin foil

What was Rutherford's conclusion about atoms?

• Atoms are weird

• The must be something in the center

• Atoms are solid

• My experiment was a failure

Tags

NGSS.HS-PS1-8

Who was the first person to suggest the idea of atoms

• John Dalton

• Rutherford

• Democritus

• Aristotle

What do we call the middle of an atom?

• Nucleus

• Neutron

• Nucleolus

• Proton

Tags

NGSS.HS-PS1-8

What is inside the nucleus?

• Protons

• Neutrons

• Electrons

• Both protons and Neutrons

Tags

NGSS.HS-PS1-8