What Is The Smallest Particle We Know?

The video explores the fundamental building blocks of matter, starting with the concept of atoms proposed by the Greeks. It traces the discovery of electrons by JJ Thompson and the identification of protons and neutrons by Rutherford and Chadwick. The video further delves into the discovery of quarks through particle accelerators, highlighting the challenges in isolating these particles. It concludes with a discussion on the sizes of fundamental particles like quarks and electrons, emphasizing the ongoing quest to understand the smallest components of matter.

Who first proposed the concept of atoms as indivisible units?

• Ernest Rutherford

• JJ Thompson

• The Greeks

• John Dalton

What did JJ Thompson discover in 1897?

• Quarks

• Protons

• Electrons

• Neutrons

Which scientist discovered the neutron?

• James Chadwick

• Ernest Rutherford

• JJ Thompson

• John Dalton

What are the smaller particles that make up protons called?

• Neutrons

• Atoms

• Electrons

• Quarks

Why is it challenging to study quarks?

• They are too large to observe

• They are the same size as electrons

• They cannot be isolated easily

• They are electrically charged