Period:
Answer the following question in clear and concise manner using appropriate English.
1. Define atom: ______________________________________________________________
2. What is the importance of Dalton's atomic theory:
________________________________________________________________________________
_________________________________________________________________________________
3. In the following lines only, write the 4 part of Dalton's theory.
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
4. What's the three updates (relate to above lines):
_______________________________________________________________________
_______________________________________________________________________
_______________________________________________________________________
5. From Dalton, what is the new way we can define Law of Conservation of Mass
_____________________________________________________________________________
_____________________________________________________________________________
6. Define Law of Definite Proportion:
_____________________________________________________________________________
7. Draw a picture of JJ Thomson experiment and give the two conclusion (explain how he got them) from his experiments.
A. __________________________________________________________________________________________
B. ___________________________________________________________________________________________
8. Draw a picture of the atom after Thomson, what did they call it ____________________________
and what else did they know about the atom at this time? ______________________________________
9. __________________ did an ________________ experiment that used ______________________ from
Thomson experiment to figure of the exact __________ and _______________ of the electron.