dalton's atomic theory
John Dalton discovered the atomic theory of matter in 1803. During his studies in meteorology, Dalton found out that water exists in air as an independent gas. Dalton thought about how air and water could occupy the same place at the same time, when solid's can't. Dalton thought that evaporation might be the mixing of air and water particles. Dalton performed a series of experiments and made several revolutionary discoveries that were all part of his atomic theory. These discoveries were:
- All matter is made of atoms.
- Atoms are indivisible and indestructible.
- All atoms of a certain elements are identical in mass and other properties.
- Compounds are made by combining two or more different types of atoms.
- A chemical reaction is just a rearrangement of atoms.
These discoveries were all parts that basically formed what is now Dalton's atomic theory. They all helped Dalton make the first atomic model that led to several other revolutionary discoveries and revised atomic models (e.g. Thomson's plum pudding atomic model, Rutherford's atomic model, and the currently used orbital atomic model). Newer and more accurate models were made after Dalton's, but still Dalton's atomic theory remains important today.
- All matter is made of atoms.
- Atoms are indivisible and indestructible.
- All atoms of a certain elements are identical in mass and other properties.
- Compounds are made by combining two or more different types of atoms.
- A chemical reaction is just a rearrangement of atoms.
These discoveries were all parts that basically formed what is now Dalton's atomic theory. They all helped Dalton make the first atomic model that led to several other revolutionary discoveries and revised atomic models (e.g. Thomson's plum pudding atomic model, Rutherford's atomic model, and the currently used orbital atomic model). Newer and more accurate models were made after Dalton's, but still Dalton's atomic theory remains important today.
dalton's atomic model
http://2011period7group3.wikispaces.com/file/view/daltons_atom_model.jpg/169291805/daltons_atom_model.jpg
Here is Dalton's Atomic model that he theorized after concluding his experiments. The Dalton Atomic model depicts an atom as an indivisible particle of matter.