John Dalton
By: Desiree Yanis :))))))))
John Dalton
John Dalton was a British Chemist who is best known for his development of the modern atomic theory, and also his research into color blindness.
John Dalton's Atomic Theory Laws
1. All matter is made of atoms. Atoms are indivisible and indestructible.
2. All atoms of a particular element are identical in mass and properties.
3. Compounds are formed by a combination of two or more different kinds of atoms.
4. A chemical reaction is a rearrangement of atoms.
John Dalton's Atomic Theory
Symbols and Charts used by Dalton
Throughout Dalton's experiments on Atomic Theory, he made many charts and symbols of the weight of different atoms.
What was "A New System of Chemical Philosophy"?
This was one of Dalton's books that he wrote about his experiments. This one in particular was about how atoms can be distinguished by their varying atomic weights. It is also about how the different atoms can combine with simple ratios.
Chart created by Dalton of how atoms combine to form molecules.
Chart created by Dalton of how molecules of water might look in ice
Daltonism
As an early scientist, Dalton did a small research project on the red color blindness, which was often referred to as "Daltonism." This was a topic with which he had a first hand experience with, as he discovered that both him and his brother were born color blind.