Atomic Models

Learning Objectives: I can...

• Summarize the history of atomic models.

• Identify the differences between the various atomic models.

• Develop and use a model which shows that electrons orbit outside the center of the atom.

Multiple Choice

Why are models useful in the study of atoms?

• Atoms are too dangerous to handle.

• Atoms are too big too fit in a lab.

• Atoms are too small to see with our eyes.

• Atoms are too rare and valuable to use in lab studies.

Multiple Select

What were the two main advancements that J.J. Thomson's "Plum Pudding" model proposed?

• Atoms contain smaller particles with a negative charge.

• Atoms are solid spheres.

• Atoms are made of negatively-charged particles floating in a positively-charged "sea."

• Atoms cannot be destroyed or divided.

Multiple Choice

In the Rutherford model, where can the atom's positive charge be found?

• In the electrons.

• In the nucleus.

• In the orbits.

• In the plum pudding.

Multiple Choice

Match the atomic model in the picture with the scientist who developed it.

• John Dalton (1808)

• Ernest Rutherford (1909)

• Erwin Shrödinger (1926)

• JJ Thomson (1897)

Multiple Choice

Match the atomic model in the picture with the scientist who developed it.

• JJ Thomson (1897)

• John Dalton (1808)

• Niels Bohr (1913)

• Erwin Shrödinger (1926)