Atoms The Building Blocks of the Universe_20240816_072740_0000.pdf

Atom

1. • Atoms are incredibly small particles.
• Couldn't be seen until 1981 (scanning
tunneling microscope).
• Idea originated in ancient Greece.
Atoms: A Brief History

2. • Greek philosopher Democritus
(~450 BC).
• Questioned the divisibility of
matter.
• Proposed the existence of
indivisible particles: "atomos".
Democritus and the Atom