The Development of the Atomic Structure


More Options: Make a Folding Card

Storyboard Description

This storyboard does not have a description.

Storyboard Text

  • Democritus
  • I believe that the objects around us are made of small hard particles that cannot be cut into smaller pieces forever. I call them, "atomos".
  • The First Atomic Theory
  • As you can see, like Democritus, I believe that atoms are small, solid balls that cannot be separated.
  • The Plum-Pudding Model
  • Democritus was a greek philosopher who believed that matter consists of small, hard particles, which he called,"atomos", which means indivisible.
  • The Gold Foil Experiment
  • John Dalton is an English philosopher, who in 1808, through his research, concluded that an atom is a small, solid ball that cannot be separated.
  • The Planetary Model (or Bohr Model)
  • In 1897, J.J. Thomson discovered the electrons using the cathode ray. He is the first scientist to proposed that the atom is made of even smaller things. He also proposed that there is a positively charged particle. He called his model, the "Plum Pudding Model".
  • The Discovery of the Neutron
  • In 1911, Ernest Rutherford discovered that there is a positively charged particle in the center using the Gold Foil Experiment. He called it the proton and the center of the atoms the nucleus.
  • In 1913, Niels Bohr improved Rutherford's model. He believed that the electrons move in a specific layer or orbit.
  • In 1932, James Chadwick discovered a particle with no charge. He called the particle a neutron. He used beryllium in his experiment.
  • N
More Storyboards By elionheart614
Explore Our Articles and Examples

Try Our Other Websites!

Photos for Class – Search for School-Safe, Creative Commons Photos (It Even Cites for You!)
Quick Rubric – Easily Make and Share Great-Looking Rubrics
abcBABYart – Create Custom Nursery Art