- 460 BC - 370 BC, Greece
- Said that everything possible is made up of "atoms", whose shapes contributed to the solidness of the material.
- "Mental experiments". Used concepts "full" and "empty" to describe the atomic theory.
- Wrote many works, has institutes named after him.
- 1743-1794,
- Came up with the Law of Conservation of Mass.
- Experimented with oxygen.
- Called "Father of Modern Chemistry".
- The atom has a central positive nucleus surrounded by negative orbiting electrons.
- experiment involved the firing of radioactive particles through minutely thin metal foils (notably gold) and detecting them using screens coated with zinc sulfide (a scintillator).
- Considered father of nuclear physics.
- Made contributions to understanding atomic structure and mechanics.
- Made liquid-drop model of nucleus.
- Also contributed to the old Ouantam Theory.
- 1868, 1963, Iowa
- Oil-drop experiments
oct 24 2011 ∞
oct 26 2011 +
oct 26 2011 +