Unknown Story
Storyboard Text
- if a stone is divided in half, the two halves would have essentially the same properties as the whole.
- Democritus believed that atoms were uniform, solid, hard, and indestructible and that they moved in infinite numbers through empty space.
- Atoms of different elements combine in simple whole numbers to form compounds.
- Dalton's atomic theory proposed that all matter was composed of atoms, indivisible and indestructible building blocks.
- I DID IT!!
- Michael Faraday, discovered that atoms had an electrical component.
- Finally after experimenting with a crooks and a cathode tubes i can finally demonsrate a negative charge in the cathode tubes
- Thomson realized that the accepted model of an atom did not account for negatively or positively charged particles.
- AHA, after bombarding a thin gold sheet with alpha particles I have come to the conclusion that all the energy was concentrated into one area.
- because of Rutherford's discovery it allowed Neils bhor to create the first theoretical representation of the atom.
- In 1932, Chadwick made a fundamental discovery in the domain of nuclear science: he proved the existence of neutrons.
- hmm, so after I bombarded Beryllium with alpha particles from the natural radioactive decay of Polonium. The radiation showed high penetration through a lead shield
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