Introduction to Atomic Theory

Introduction to Atomic Theory

Do Now: Answer the question posted on Google Classroom

LT: I can analyze a video to describe what makes up an atom. 

Directions

Watch the video on Atomic Theory. List 5-10 facts from the video in your notes. Be prepared to share out.

Share Out

Share out your facts by unmuting yourselves or typing in the chat. Remember you receive participation points!

Multiple Choice

Who was the first person to come up with the idea of the “atom?”

• Bohr

• Dalton

• Democritus

• Aristotle

Multiple Choice

JJ Thomson discovered which atomic particle?

• proton

• neutron

• electron

• nucleus

Multiple Choice

What occurred during Rutherford’s experiment that lead to his discovery of the nucleus?

• All of the alpha particles all went right through the gold foil

• All of the alpha particles bounced off the gold foil

• Most of the alpha particles went through the gold foil but a few bounced off at large angles

• Half of the alpha particles bounced off the gold foil and half went through it

Multiple Choice

What can be presumed about the atom is most of the particles went through the gold foil?

• The atom has no empty space

• The atom is very large

• The atom has a huge nucleus

• The atom is made up of mostly empty space

Multiple Choice

Who developed the "planetary model" model of the atom?

• Bohr

• Thomson

• Rutherford

• Dalton

Multiple Choice

According to Rutherford, where is most of the mass of an atom located?

• on the outside

• inside the nucleus

• in the electrons

• in the empty space

Multiple Choice

According to several theories, where are electrons located in an atom?

• inside the nucleus

• outside of the nucleus

Multiple Choice

According to Rutherford's Gold Foil Experiment, what is the charge of the nucleus?

• positive

• negative

• neutral

Open Ended

Why do you think atomic theory continued to change over time?

Open Ended

What is one thing all atomic theories have in common?