Notes 2

Today, we learned of the history of atomic models and atomic understanding.
Dalton's theory:

1. All matter consists of microscopic atoms
2. Atoms cannot be created, destroyed, or changed
3. All atoms of the same element are identical, specifically in weight
4. When elements react in compounds, they form in predicable ratios
5. Atoms can be combined, separated, or rearranged in chemical compounds

 

Through this theory, we learned how atoms behaved. The theory was disproved in some parts though, such as #3, for isotopes exist.