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Chemistry Unit
Atoms, The Periodic Table, Bohr Diagrams, and Chemical Reactions
Question | Answer |
---|---|
Who was Democritus and what did he do? | He was a Greek philosopher who theorized that all matter was made of invisible particles that today are called atoms. |
What was Democritus' theory? | Matter cannot be divided into smaller and smaller pieces forever. Eventually the smallest possible piece will be obtained. This piece will be invisible. |
What did Democritus name the smallest piece of matter and what does it mean? | Atomos- not to be cut |
Who was John Dalton and what did he do? | He was a British Chemist and teacher, he did studies and experiments in weather, colorblindness, and gases. |
What did John Dalton notice and theorize? | He noticed that elements combine in specific proportions to form compounds, and theorized that their atoms combine at the same proportions. |